APA (7th ed.) Citation

Newell, N. D., Chronic, J., & Roberts, T. G. (1953). Upper Paleozoic or Peru. Soc.

Chicago Style (17th ed.) Citation

Newell, Norman D., John Chronic, and Thomas Glasdir Roberts. Upper Paleozoic or Peru. New York: Soc, 1953.

MLA (9th ed.) Citation

Newell, Norman D., et al. Upper Paleozoic or Peru. Soc, 1953.