1. U.S. Department of Agriculture, Economic Research Service, “Food Consumption, Prices, and Expenditures,” Agricultural Economic Report 138, U.S. Department of Agriculture, Washington, D.C., 1968, and supplement for 1971.
2. Kromer, G.W., in “Fats and Oils Situation,” FOS-267, Economic Research Service, U.S. Department of Agriculture, Washington, D.C., April 1973, pp. 16–23.
3. U.S. Department of Agriculture, Agricultural Research Service, “Food and Nutrient Intake of Individuals in the United States,” Spring 1965, Household Food Consumption Survey 1965–66, Report No. 11, Washington, D.C., 1972, 291 pp.