APA (7th ed.) Citation

Xu, G., & Grant, R. E. (1994). Brachiopods near the Permian-Triassic boundary in South China. Smithsonian Inst. Press.

Chicago Style (17th ed.) Citation

Xu, Guirong, and Richard E. Grant. Brachiopods Near the Permian-Triassic Boundary in South China. Washington, DC: Smithsonian Inst. Press, 1994.

MLA (9th ed.) Citation

Xu, Guirong, and Richard E. Grant. Brachiopods Near the Permian-Triassic Boundary in South China. Smithsonian Inst. Press, 1994.