Dyfyniad APA

(1990). Great books of the Western World: Vol.6 -The dialogues of Plato,The seventh letter (2nd ed.). Encyclopaedia Britannica.

Dyfyniad Arddull Chicago

Great Books of the Western World: Vol.6 -The Dialogues of Plato,The Seventh Letter. 2nd ed. Chicago: Encyclopaedia Britannica, 1990.

Dyfyniad MLA

Great Books of the Western World: Vol.6 -The Dialogues of Plato,The Seventh Letter. 2nd ed. Encyclopaedia Britannica, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.