1. Food guides in the United States;Hertzler;J Am Diet Assoc,1974
2. Food Guide Pyramid: A Guide to Daily Food Choices,1992
3. USDA`s Food Guide: Background and Development;Welsh,1993
4. Food guides for the vegetarian;Mutch;Am J Clin Nutr,1988
5. The Dietitian`s Guide to Vegetarian Diets: Issues and Applications;Messina,1996