APA način citiranja (7. izdanje)
Gotthelf, A., & Lennox, J. G. (2011). Metaethics, egoism, and virtue: Studies in Ayn Rand's normative theory. University of Pittsburgh Press.
Čikaški stil citiranja (17. izdanje)
Gotthelf, Allan, i James G. Lennox. Metaethics, Egoism, and Virtue: Studies in Ayn Rand's Normative Theory. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2011.
MLA način citiranja (9. izdanje)
Gotthelf, Allan, i James G. Lennox. Metaethics, Egoism, and Virtue: Studies in Ayn Rand's Normative Theory. University of Pittsburgh Press, 2011.
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