Ohio State University Libraries:
“The Big Island of Hawaii” by Patti Dittoe & Jan Wagner
“The Oregon Trail” by Patti Dittoe & Jan Wagner
“U.S. High Points” by Jan Wagner
“Hiking the Triple Crown” by Patti Dittoe & Jan Wagner
“U.S. National Grasslands” by Jan Wagner
“A Visit to Iceland – An Island of Glaciers, Volcanoes, and Unique Geology” by Patti Dittoe
“A Visit to Iceland – Postcards” by Jan Wagner
“Where on Earth” by Patti Dittoe
“Stargazing” by Jan Wagner
“Historic Adventures in Ohio” by Jan Wagner
“The Geology of Yellowstone National Park” by Patti Dittoe
“Yellowstone Wildlife” by Jan Wagner
“Ohio State Parks” by Jan Wagner
“Tropical Snapshots” by Jan Wagner
“Dis-Connected” by Jan Wagner
“U.S. National Seashores & Lakeshores” by Jan Wagner
Bodleian Library / University of Oxford