APA (7th ed.) Citation

Kellogg, V. L. (2009). Herbert Hoover The Man and His Work. Project Gutenberg.

Chicago Style (17th ed.) Citation

Kellogg, Vernon L. Herbert Hoover The Man and His Work. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Kellogg, Vernon L. Herbert Hoover The Man and His Work. Project Gutenberg, 2009.

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