APA (7th ed.) Citation

Cooper, G. A., & Grant, R. E. (1972). Permian Brachiopods of West Texas. Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Cooper, G. Arthur, and Richard E. Grant. Permian Brachiopods of West Texas. Washington: Smithsonian Institution Press, 1972.

MLA (8th ed.) Citation

Cooper, G. Arthur, and Richard E. Grant. Permian Brachiopods of West Texas. Smithsonian Institution Press, 1972.