1. Agriculture Research Service, Consumer and Food Institute (1977) Agriculture Handbook No. 456, Data Sets 456-1, 456-2. Expansion of data published in Nutritive Values of American Foods in Common Units. Hyattsville, MD: U.S. Department of Agriculture.
2. American Academy of Pediatrics, Committee on Nutrition (1979) Pediatric Nutrition Handbook. Evanston, IL: American Academy of Pediatrics.