Cita APA (7a ed.)

Wallace, A. R. (1913). Social environment and moral progress. Cassell and Co..

Cita Chicago Style (17a ed.)

Wallace, Alfred Russel. Social Environment and Moral Progress. London, New York [etc.]: Cassell and Co., 1913.

Cita MLA (8a ed.)

Wallace, Alfred Russel. Social Environment and Moral Progress. Cassell and Co., 1913.