APA (7th ed.) Citation

Colp, R. (1986). "Confessing a murder": Darwin's first revelations about transmutation.

Chicago Style (17th ed.) Citation

Colp, Ralph. "Confessing a Murder": Darwin's First Revelations About Transmutation. 1986.

MLA (9th ed.) Citation

Colp, Ralph. "Confessing a Murder": Darwin's First Revelations About Transmutation. 1986.

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