Não informado. (2000). Report of the Secretary of Agriculture. U.S. Department of Agriculture.
Chicago (17e ed.) BronvermeldingNão informado. Report of the Secretary of Agriculture. Washington: U.S. Department of Agriculture, 2000.
MLA (8e ed.) BronvermeldingNão informado. Report of the Secretary of Agriculture. U.S. Department of Agriculture, 2000.
Let op: Deze citaties zijn niet altijd 100% accuraat.