Gaya APA

Adler, M, J. et al (2007). Great books of the Western World 11 : Lucretius, The way things are; The discourses of Epictus; The meditations of Marcus Aurelius; Plotinus, the six enneads (2nd ed.). Chicago: Encyclopaedia Britannica, Inc..

Gaya MLA

Adler, Mortimer, J.. et al. "Great books of the Western World 11 : Lucretius, The way things are; The discourses of Epictus; The meditations of Marcus Aurelius; Plotinus, the six enneads". 2nd ed. Chicago: Encyclopaedia Britannica, Inc., 2007. Text.