Ehret, Dana J. books & textbook
Footprints in Stone: Fossil Traces of Coal-Age Tetrapods
Buta ., Ronald J. Kopaska-Merkel, David C. Ehret, Dana J.
University Alabama Press /2016-07-26 Paperback / 352 Pages
isbn-10: 0817358447 / isbn-13: 9780817358440
