APA (7th ed.) Citation

Alexander, R. D. (1987). The biology of moral systems. Aldine De Gruyter.

Chicago Style (17th ed.) Citation

Alexander, Richard D. The Biology of Moral Systems. New York, NY: Aldine De Gruyter, 1987.

MLA (8th ed.) Citation

Alexander, Richard D. The Biology of Moral Systems. Aldine De Gruyter, 1987.

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