APA ציטוט

Blum, L. A. (1980). Friendship, altruism and morality. Routledge.

Chicago Style (17th ed.) Citation

Blum, Lawrence A. Friendship, Altruism and Morality. London: Routledge, 1980.

ציטוט MLA

Blum, Lawrence A. Friendship, Altruism and Morality. Routledge, 1980.