The new conquest of central Asia : a narrative of the explorations of the Central
Asiatic expeditions in Mongolia and China, 1921-1930 / by Roy Chapman Andrews / with
chapters by Walter Granger, Clifford H. Pope [and] Nels C. Nelson, and summary statements
by G. M. Allen, R. C. Andrews, C. P. Berkey [and others] With 128 plates and 12 illustrations
in the text and three maps at end