Dyfyniad APA

-. (1995). The new encyclopaedia britannica vol. 26: Macropaedia(knowledge in depth).-- 15th edition. Encyclopaedia Britannica.

Dyfyniad Arddull Chicago

-. The New Encyclopaedia Britannica Vol. 26: Macropaedia(knowledge in Depth).-- 15th Edition. Chicago: Encyclopaedia Britannica, 1995.

Dyfyniad MLA

-. The New Encyclopaedia Britannica Vol. 26: Macropaedia(knowledge in Depth).-- 15th Edition. Encyclopaedia Britannica, 1995.

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