Dyfyniad APA

(1997). Nutrition: Annual editions 97/98. Dushkin/McGraw-Hill.

Dyfyniad Arddull Chicago

Nutrition: Annual Editions 97/98. Connecticut: Dushkin/McGraw-Hill, 1997.

Dyfyniad MLA

Nutrition: Annual Editions 97/98. Dushkin/McGraw-Hill, 1997.

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