APA (7th ed.) Citation

Cottrell, P. L. (1992). Events: A chronicle of the twentieth century. Grange Books.

Chicago Style (17th ed.) Citation

Cottrell, Philip L. Events: A Chronicle of the Twentieth Century. London: Grange Books, 1992.

MLA (9th ed.) Citation

Cottrell, Philip L. Events: A Chronicle of the Twentieth Century. Grange Books, 1992.