Food pyramids
bibliography
Centers for Disease Control and Prevention. www.cdc.gov. Last accessed July 4, 2007.
Harvard School of Public Health Food Pyramid. www.hsph.harvard.edu. Last accessed July 4, 2007.
Oldways Food Pyramids. www.oldwayspt.org. Last accessed July 4, 2007.
United States Department of Agriculture (USDA) Food Pyramid. www.mypyramid.gov. Last accessed July 4, 2007.
United States Food and Drug Administration (FDA). www.fda.gov. Last accessed July 4, 2007.
