The comparative osteology of the Triassic turtle Proganochelys.
New York: Bulletin of the American Museum of Natural History, 1990. Octavo, wrappers, text illustrations, signature, paperback.
Bulletin of the AMNH, number 194.
New York: Bulletin of the American Museum of Natural History, 1990. Octavo, wrappers, text illustrations, signature, paperback.
Bulletin of the AMNH, number 194.