APA (7th ed.) Citation

Trine, R. W. (2009). The Higher Powers of Mind and Spirit. Project Gutenberg.

Chicago Style (17th ed.) Citation

Trine, Ralph Waldo. The Higher Powers of Mind and Spirit. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Trine, Ralph Waldo. The Higher Powers of Mind and Spirit. Project Gutenberg, 2009.

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