APA (7th ed.) Citation

Eckley, W. (1980). Herbert Hoover. Twayne.

Chicago Style (17th ed.) Citation

Eckley, Wilton. Herbert Hoover. Boston, Mass: Twayne, 1980.

MLA (9th ed.) Citation

Eckley, Wilton. Herbert Hoover. Twayne, 1980.

Warning: These citations may not always be 100% accurate.