APA (7th ed.) Citation

Kropotkin, P. A., Friedland Louis S., & Piroshnikoff Joseph R. (1992). Ethics. Black Rose Books.

Chicago Style (17th ed.) Citation

Kropotkin, Pëtr Alekseevič, Friedland Louis S., and Piroshnikoff Joseph R. Ethics. Black Rose Books, 1992.

MLA (8th ed.) Citation

Kropotkin, Pëtr Alekseevič, et al. Ethics. Black Rose Books, 1992.