APA (7th ed.) Citation

Orr, C. E. (2009). The Gospel Day Or, the Light of Christianity. Project Gutenberg.

Chicago Style (17th ed.) Citation

Orr, Charles Ebert. The Gospel Day Or, the Light of Christianity. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Orr, Charles Ebert. The Gospel Day Or, the Light of Christianity. Project Gutenberg, 2009.

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