APA (7e ed.) Bronvermelding

Não informado. (1963). US Forest Service Research Note RM. U.S. Forest Service.

Chicago (17e ed.) Bronvermelding

Não informado. US Forest Service Research Note RM. Fort Collins, Colo: U.S. Forest Service, 1963.

MLA (8e ed.) Bronvermelding

Não informado. US Forest Service Research Note RM. U.S. Forest Service, 1963.

Let op: Deze citaties zijn niet altijd 100% accuraat.