National food review Economics, Statistics, and Cooperatives Service, U.S. Department of Agriculture. [electronic resource].
Chicago (17e ed.) BronvermeldingNational Food Review Economics, Statistics, and Cooperatives Service, U.S. Department of Agriculture. [electronic Resource].
MLA (9e ed.) BronvermeldingNational Food Review Economics, Statistics, and Cooperatives Service, U.S. Department of Agriculture. [electronic Resource].
Let op: Deze citaties zijn niet altijd 100% accuraat.