TY  - BOOK
AU  - Osborn,Henry Fairfield
AU  - Percy,Mabel Rice
TI  - Proboscidea: A monograph of the discovery, evolution, migration and extinction of the mastodonts and elephants of the world 
PY  - 1936///-42
CY  - New York
PB  - Pub. on the J. Pierpont Morgan fund by the trustees of the American museum of natural history, the American museum press
N1  - Paged continuously; Maps on lining-papers
ER  -