Não informado. (2007). Fire Management Today. U.S. Department of Agriculture, Forest Service.
Chicago (17e ed.) BronvermeldingNão informado. Fire Management Today. Washington: U.S. Department of Agriculture, Forest Service, 2007.
MLA (8e ed.) BronvermeldingNão informado. Fire Management Today. U.S. Department of Agriculture, Forest Service, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.