Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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