ISBN 9781422376317 books & textbook
Late Permian Terrestrial Vertebrates, U.S.A. and U.S.S.R.: Transactions, American Philosophical Society (vol. 52, part 2) (Transactions of the American Philosophical Society, 1066)
The American Philosophical Society Press /1962-01-01 Paperback / 224 Pages
isbn-10: 1422376311 / isbn-13: 9781422376317
