APA (7th ed.) Citation

Romanes, G. J., & Darwin, C. R. (2003). Mental evolution in animals. Elibron Classics.

Chicago Style (17th ed.) Citation

Romanes, George John, and Charles Robert Darwin. Mental Evolution in Animals. [Lugar de publicación no identificado]: Elibron Classics, 2003.

MLA (9th ed.) Citation

Romanes, George John, and Charles Robert Darwin. Mental Evolution in Animals. Elibron Classics, 2003.