1. Nutrition and Your Health,1995
2. USDA's Food Guide Pyramid,1992
3. 5 A Day for Better Health;Havas;J Am Diet Assoc.,1994
4. The effects of variety in food choices on dietary quality;Krebs-Smith;J Am Diet Assoc.,1987
5. Dietary diversity in the US population, NHANES II, 1976-1980;Kant;J Am Diet Assoc.,1991