Hospers, J. (1972). Human conduct; problems of ethics (Shorter ed.). Harcourt Brace Jovanovich.
Čikaški stil citiranja (17. izdanje)Hospers, John. Human Conduct; Problems of Ethics. Shorter ed. New York: Harcourt Brace Jovanovich, 1972.
MLA način citiranja (9. izdanje)Hospers, John. Human Conduct; Problems of Ethics. Shorter ed. Harcourt Brace Jovanovich, 1972.
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