APA-referens (7:e uppl.)

HUTCHINS, R. M. [. (1989). Great books of the western world vol.17: Plotinus. Encyclopaedia Britannica.

Chicago-referens (17:e uppl.)

HUTCHINS, Robert Maynard [Ed.]. Great Books of the Western World Vol.17: Plotinus. Chicago: Encyclopaedia Britannica, 1989.

MLA-referens (9:e uppl.)

HUTCHINS, Robert Maynard [Ed.]. Great Books of the Western World Vol.17: Plotinus. Encyclopaedia Britannica, 1989.