Dyfyniad APA

Encyclopaedia Britannica, I. (1994). The new encyclopaedia britannica: Macropaedia knowledge in depth (Fifteenth edition.). Encyclopaedia Britannica.

Dyfyniad Arddull Chicago

Encyclopaedia Britannica, Inc. The New Encyclopaedia Britannica: Macropaedia Knowledge in Depth. Fifteenth edition. Chicago: Encyclopaedia Britannica, 1994.

Dyfyniad MLA

Encyclopaedia Britannica, Inc. The New Encyclopaedia Britannica: Macropaedia Knowledge in Depth. Fifteenth edition. Encyclopaedia Britannica, 1994.

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