Grabau, A. W. (1931). The Permian of Mongolia: A report on the Permian fauna of the Jisu Honguer limestone of Mongolia and its relations to the Permian of other parts of the world. Natural History of Central Asia. 4: 1-665 (American Museum of Natural History, New York).
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Grabau, A. W.
1931
The Permian of Mongolia: A report on the Permian fauna of the Jisu Honguer limestone of Mongolia and its relations to the Permian of other parts of the world
Natural History of Central Asia
4: 1-665 (American Museum of Natural History, New York)