APA (7th ed.) Citation

Hay, K. (2005). The Quest of Happy Hearts. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hay, Kathleen. The Quest of Happy Hearts. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Hay, Kathleen. The Quest of Happy Hearts. Project Gutenberg, 2005.

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