APA (7th ed.) Citation

Macfadden, B. (2006). Vitality Supreme. Project Gutenberg.

Chicago Style (17th ed.) Citation

Macfadden, Bernarr. Vitality Supreme. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Macfadden, Bernarr. Vitality Supreme. Project Gutenberg, 2006.

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