APA (7th ed.) Citation

Crampton, H. E. (2005). The Doctrine of Evolution: Its Basis and Its Scope. Project Gutenberg.

Chicago Style (17th ed.) Citation

Crampton, Henry Edward. The Doctrine of Evolution: Its Basis and Its Scope. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Crampton, Henry Edward. The Doctrine of Evolution: Its Basis and Its Scope. Project Gutenberg, 2005.

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