APA (7th ed.) Citation

Croft, D. E. (2004). Supreme Personality Fun in Living A Doubt, Fear, and Worry Cure. Project Gutenberg.

Chicago Style (17th ed.) Citation

Croft, Delmer Eugene. Supreme Personality Fun in Living A Doubt, Fear, and Worry Cure. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Croft, Delmer Eugene. Supreme Personality Fun in Living A Doubt, Fear, and Worry Cure. Project Gutenberg, 2004.

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