APA (7th ed.) Citation

Schopf, W. J. 1. (1992). Major events in the history of life. Jones and Bartlett.

Chicago Style (17th ed.) Citation

Schopf, William J. 1941. Major Events in the History of Life. Boston: Jones and Bartlett, 1992.

MLA (8th ed.) Citation

Schopf, William J. 1941. Major Events in the History of Life. Jones and Bartlett, 1992.