Books (authored or co-authored):
Morphology and Universals in Syntactic Change: Evidence from Medieval and Modern Greek. Ph.D. Dissertation, Harvard (1978). Printed and distributed by the Indiana University Linguistics Club. Pp. 293 + x. Expanded and updated version published by Garland Publishers (Outstanding Dissertations in Linguistics Series), 1990. Pp. 314 + xviii. Reissued in Routledge Library Edition: Syntax, Volume 12 (2017)
The Synchrony and Diachrony of the Balkan Infinitive: A Study in Areal, General, and Historical Linguistics. Cambridge University Press, Cambridge Studies in Linguistics, Supplementary Series, 1983. Pp. 341 + xiv. Reissued in paperback, 2009.
Modern Greek (with Irene Philippaki-Warburton). Croom Helm Ltd. Publishers, 1987. Pp. 281 + xvi. (In Croom Helm Descriptive Grammars series, edited by B. Comrie & N. Smith).
Clitics: A Comprehensive Bibliography 1892-1991 (with Joel A. Nevis, Dieter Wanner, and Arnold M. Zwicky). Volume 22 in Amsterdam Studies in the Theory and History of Linguistic Science, Series V: Library & Information Sources in Linguistics. John Benjamins Publishing Co., 1994. Pp. 274 + xxxvi.
Language Change, Language History, and Language Relationship. An Introduction to Historical Linguistics (with Hans H. Hock (lead author)). Berlin: Mouton de Gruyter (In Trends in Linguistics — Studies and Monographs series), 1996. Pp. 608 + xxx. Second, revised, edition, 2009, p. 588 + xviii. Third, revised edition 2019, pp. 565 + x. This photo is of the cover of the 2019 third edition.
Vështrime Albano-Ballkanologjike (Albano-Balkanological Observations). Prishtina: Kosova Academy of Sciences and Arts (Special Editions CXCIV, Section of Linguistics and Literature, Book 73), 2020.
The Balkan Languages (with Victor Friedman). To appear in Cambridge Language Survey series, Cambridge University Press (2025).
Books (co-edited):
Studies in Relational Grammar 3 (co-edited with Paul M. Postal). University of Chicago Press, 1990. Pp. 390 + xii.
Nostratic: Sifting the Evidence (co-edited with Joseph Salmons). Amsterdam: John Benjamins Publishers, 1998 (Current Issues in Linguistic Theory, Vol. 142). Pp. 292 + vi.
Themes in Greek Linguistics II (co-edited with Irene Philippaki-Warburton and Geoffrey Horrocks). Amsterdam: John Benjamins Publishers, 1998 (Current Issues in Linguistic Theory, Vol. 159). Pp. 335 + x.
Proceedings of LP ‘98 [= 4th Linguistics and Phonetics Conference]: Item Order in Language and Speech (co-edited with Bohumil Palek & Osamu Fujimura). Prague: Karolinum Press, 1999. Pp. 315 (Vol. I).
Proceedings of LP ‘98 [= 4th Linguistics and Phonetics Conference]: Item Order in Language and Speech (co-edited with Bohumil Palek & Osamu Fujimura). Prague: Karolinum Press, 1999. Pp. 415 (Vol. II).
Proceedings of the First International Conference of Modern Greek Dialects and Linguistic Theory (Patras, Greece, Oct. 12-14, 2000) (co-edited with Angela Ralli & Mark Janse). Patras: University of Patras, July 2001
Handbook of Historical Linguistics (co-edited with Richard D. Janda). Blackwell Publishers, 2003. Pp. 882 + xviii.
When Languages Collide: Perspectives on Language Conflict, Language Competition, and Language Coexistence (co-edited with Johanna DeStefano, Neil Jacobs, & Ilse Lehiste). 2003. Columbus: Ohio State University Press.
Linguistic Diversity in Michigan and Ohio. Towards two state linguistic profiles, co-edited with Dennis Preston and Carol Preston. Ann Arbor: Caravan Books, 2005.
Proceedings of the Second International Conference of Modern Greek Dialects and Linguistic Theory (Mitilini, Greece, September 30-October 2, 2004) (co-edited with Angela Ralli & Mark Janse). Mitilini: University of the Aegean Press, 2006.
A Linguist’s Linguist. Festschrift in Honor of Wayles Browne (co-edited with Steven Franks and Vrinda Chidabaram). Bloomington: Slavica Publishers, 2009.
Studies in Modern Greek Dialects and Linguistic Theory (co-edited with Angela Ralli & Mark Janse). Cyprus: ISP, 2011.
Historical Linguistics (Critical Concepts in Linguistics, 6 volumes), co-edited with Hope C. Dawson. London: Routledge, 2013.
Од Чикаго и назад. Papers to Honor Victor A. Friedman on the Occasion of his Retirement, co-edited with Donald Dyer and Christina Kramer. (Special issue of) Balkanistica 28 (2015).
Handbook of Comparative and Historical Indo-European Linguistics (3 volumes), co-edited with Jared Klein and Matthias Fritz. Berlin: de Gruyter Mouton (2017-2018).
Katerino Mome. Studies in Bulgarian Morphosyntax in Honor of Catherine Rudin, co-edited with Steven L. Franks, Vrinda Chidambaram, and Iliyana Krapova. Bloomington: Slavica (2018).
Balkan Syntax and (Universal) Principles of Grammar, co-edited with Iliyana Krapova. Berlin: Mouton de Gruyter (2018).
The Current State of Balkan Linguistics: Celebrating Twenty Years of the Kenneth E. Naylor Lectures (= Balkanistica 32.1), co-edited with Donald Dyer and Mary Allen Johnson. Oxford, MS: University Printing Services (2019).
Perspectives on language structure and language change. Studies in honor of Henning Andersen, co-edited with Lars Heltoft, Iván Igartua, Kirsten Jeppesen Kragh, and Lene Schøsler. Amsterdam: John Benjamins Publishers (Current Issues in Linguistic Theory, Vol. 345). Pp. 411 + ix. (2019).
Proceedings of MGDLT8 – 8th Conference on Modern Greek Dialects and Linguistic Theory, University of Gjirokastër, October 2018, co-edited with Angeliki Ralli, Panayiotis Barkas, & Stavros Bompolas. Gjirokastër: University of Gjirokastër (2019)
Handbook of Historical Linguistics Vol. II, co-edited with Richard D. Janda and Barbara Vance. Oxford: Wiley (2020). Pp. 715 + xvi.