APA (7th ed.) Citation

Cooper, G. A. (1957). Memorial. Proceedings Volume of the Geological Society of America for ..., 1956, 141.

Chicago Style (17th ed.) Citation

Cooper, G. A. "Memorial." Proceedings Volume of the Geological Society of America for ... 1956 (1957): 141.

MLA (9th ed.) Citation

Cooper, G. A. "Memorial." Proceedings Volume of the Geological Society of America for ..., vol. 1956, 1957, p. 141.