Proboscidea : a monograph of the discovery, evolution, migration and extinction of the mastodonts and elephants of the world /
by Henry Fairfield Osborn ; edited by Mabel Rice Percy
- New York : Pub. on the J. Pierpont Morgan fund by the trustees of the American museum of natural history, the American museum press, 1936-1942
- 2 v. : ill.(some col.), maps ( folded) ; 34 cm.