Dyfyniad APA

ebrary, Inc. (2007). Nutrition and activity. Emerald Group Publishing.

Dyfyniad Arddull Chicago

ebrary, Inc. Nutrition and Activity. Bradford, England: Emerald Group Publishing, 2007.

Dyfyniad MLA

ebrary, Inc. Nutrition and Activity. Emerald Group Publishing, 2007.

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