APA (7th ed.) Citation

Peters, M. C. (2011). Abraham Lincoln's Religion. Project Gutenberg.

Chicago Style (17th ed.) Citation

Peters, Madison Clinton. Abraham Lincoln's Religion. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Peters, Madison Clinton. Abraham Lincoln's Religion. Project Gutenberg, 2011.

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