APA (7th ed.) Citation

Pratt, P. P. (2011). Key to the Science of Theology. Project Gutenberg.

Chicago Style (17th ed.) Citation

Pratt, Parley P. Key to the Science of Theology. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Pratt, Parley P. Key to the Science of Theology. Project Gutenberg, 2011.

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