APA (7th ed.) Citation

Price, G. M. (2004). Q. E. D., or New Light on the Doctrine of Creation. Project Gutenberg.

Chicago Style (17th ed.) Citation

Price, George McCready. Q. E. D., or New Light on the Doctrine of Creation. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Price, George McCready. Q. E. D., or New Light on the Doctrine of Creation. Project Gutenberg, 2004.

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