Fredericks, G. N. (1925). Upper Paleozoicum of the Ussuriland, 2: Permian Brachiopoda of Cape Kalouzin. Materialy po Geologii i Poleznym Iskopaemym Dal'nego Vostoka [Records of the Geological Committee of the Russian Far East]. 40: 28 pp.
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Fredericks, G. N.
1925
Upper Paleozoicum of the Ussuriland, 2: Permian Brachiopoda of Cape Kalouzin
Materialy po Geologii i Poleznym Iskopaemym Dal'nego Vostoka [Records of the Geological Committee of the Russian Far East]