The new conquest of central Asia : a narrative of the explorations of the Central Asiatic expeditions in Mongolia and China, 1921-1930
Andrews, Roy Chapman, 1884-1960; Granger, Walter, 1872-1941; Pope, Clifford H. (Clifford Hillhouse), 1899-1974; Nelson, Nels C. (Nels Christian), b. 1875; Central Asiatic Expeditions (1921-1930)