DUYFF, R. L. (2006). American Dietetic association complete food and nutrition guide (3rd Edition.). John Wiley & Sons.
Dyfyniad Arddull ChicagoDUYFF, Roberta Larson. American Dietetic Association Complete Food and Nutrition Guide. 3rd Edition. New Jersey: John Wiley & Sons, 2006.
Dyfyniad MLADUYFF, Roberta Larson. American Dietetic Association Complete Food and Nutrition Guide. 3rd Edition. John Wiley & Sons, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.