Dyfyniad APA

Stewart, P. (1963). Meteorology unit. Encyclopaedia Britannica Educational Corporation.

Dyfyniad Arddull Chicago

Stewart, P.E. Meteorology Unit. Chicago: Encyclopaedia Britannica Educational Corporation, 1963.

Dyfyniad MLA

Stewart, P.E. Meteorology Unit. Encyclopaedia Britannica Educational Corporation, 1963.

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