APA (7th ed.) Citation

Kellogg, J. H. (2006). Plain Facts for Old and Young. Project Gutenberg.

Chicago Style (17th ed.) Citation

Kellogg, John Harvey. Plain Facts for Old and Young. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Kellogg, John Harvey. Plain Facts for Old and Young. Project Gutenberg, 2006.

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