Cita APA (7th ed.)

Grabau, A. W. (1931). Devonian Brachiopoda of China. Geological Survey of China.

Cita Chicago (17th ed.)

Grabau, Amadeus W. Devonian Brachiopoda of China. Peiping (Peking): Geological Survey of China, 1931.

Cita MLA (8th ed.)

Grabau, Amadeus W. Devonian Brachiopoda of China. Geological Survey of China, 1931.