APA (7th ed.) Citation

Ingersoll, R. G. (2011). Hell Warm Words on the Cheerful and Comforting Doctrine of Eternal Damnation. Project Gutenberg.

Chicago Style (17th ed.) Citation

Ingersoll, Robert Green. Hell Warm Words on the Cheerful and Comforting Doctrine of Eternal Damnation. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Ingersoll, Robert Green. Hell Warm Words on the Cheerful and Comforting Doctrine of Eternal Damnation. Project Gutenberg, 2011.

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