Dyfyniad APA

(1971). Ecology of food and nutrition. Gordon and Breach.

Dyfyniad Arddull Chicago

Ecology of Food and Nutrition. New York: Gordon and Breach, 1971.

Dyfyniad MLA

Ecology of Food and Nutrition. Gordon and Breach, 1971.

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