On the trail of ancient man : a narrative of the field work of the Central Asiatic Expeditions
Andrews, Roy Chapman, 1884-Osborn, Henry Fairfield, 1857-1935
Central Asiatic Expeditions of the American Museum of Natural History.
G.P. Putnam's Sons
Natural historyMongoliaPaleontologyDescription and travel
xxiv, 375 p. ; ill., maps (1 fold.) ; 24 cm.
by Roy Chapman Andrews ; with an introd. and a chapter by Henry Fairfield Osborn. --
Q115 .A6 1926
United States of America