Não informado. (1937). Fats and oils situation. U.S. Department of Agriculture, Bureau of Agricultural Economics.
Chicago (17e ed.) BronvermeldingNão informado. Fats and Oils Situation. Washington: U.S. Department of Agriculture, Bureau of Agricultural Economics, 1937.
MLA (8e ed.) BronvermeldingNão informado. Fats and Oils Situation. U.S. Department of Agriculture, Bureau of Agricultural Economics, 1937.
Let op: Deze citaties zijn niet altijd 100% accuraat.