On the trail of ancient man.
Contributors: Osborn, Henry Fairfield, 1857-1935.
Publisher: Garden City publishing company, inc.
Published: 1935
Place of publication: New York, N.Y
Language: eng
Number of pages: 375
Subjects: Central Asiatic expeditions of the American museum of natural history.; Natural history -- Mongolia.; Paleontology -- Mongolia.; Mongolia -- Description and travel.