Gaya APA

Adler, M, J. (1993). Great Books of The Western Worls : Lucretius : The Way Things Are ; The Discourses of Epictetus ; The Meditatios of Marcus Aurelius ; Plotinus : The Six Enneads (11) (11 (dari 60 jilid)). Chicago: Encyclopedia Britannica, Inc..

Gaya MLA

Adler, Mortimer, J.. "Great Books of The Western Worls : Lucretius : The Way Things Are ; The Discourses of Epictetus ; The Meditatios of Marcus Aurelius ; Plotinus : The Six Enneads (11)". 11 (dari 60 jilid) Chicago: Encyclopedia Britannica, Inc., 1993. Text.