Dr. Michael Colgan. "Optimum Sports Nutrition". 1993.
C. Y. Lee. "Free sugars in fruits and vegetables". 1970 Food Science and Technology 1
J Marlett. "Content and composition of dietary fiber in 117 frequently consumed foods". 1992 Journal of the American Dietetic Association 92 2
National Institutes of Health (NIH). "Carotenoid analyses of U.S. foods, Food Composition Laboratory". 1997
Nutrient Data Laboratory, ARS, USDA. "Development/Verification of Nutrient Retention Values in Foods Prepared by Different Cooking Methods". 1993 Beltsville MD
Nutrient Data Laboratory, ARS, USDA. "National Food and Nutrient Anlaysis Program Wave 12h". 2008 Beltsville MD
Nutrient Data Laboratory, ARS, USDA. "Investigation of the carbohydrate fraction of foods . . . raw, processed and prepared". 1985 Beltsville MD
Produce Marketing Association (PMA). "Nutrient Content of Squash". 1991
National Cancer Institute (NCI), DHHS. "Total dietary fiber content of selected foods". 1992