Calcium Food Sources: References

USDA 2010 Dietary Guidelines for Americans. USDA. Web. 1 June 2011. <http://www.cnpp.usda.gov/Publications/DietaryGuidelines/2010/PolicyDoc/Appendices.pdf>.

USDA National Nutrient Database. USDA, 3- Sept. 2010. Web. 4 July 2011. <http://www.ars.usda.gov/SP2UserFiles/Place/12354500/Data/SR23/nutrlist/sr23a301.pdf>.