Geology of Mongolia : a reconnaissance report based on the investigations of the years 1922-1923 /
Berkey, Charles P.(Charles Peter),1867-1955.
Morris, Frederick Kuhne,1886-joint author.
New York : The American Museum of Natural History,
1927.
At head of title: Central Asiatic expeditions. Roy Chapman Andrews, leader.
Frontispiece and one plate accompanied by guard sheets with descriptive letterpress.
Bibliography: p. 423-448.
Geology