APA (7e ed.) Bronvermelding

Não informado. American woods. U.S. Forest Service.

Chicago (17e ed.) Bronvermelding

Não informado. American Woods. Washington: U.S. Forest Service.

MLA (8e ed.) Bronvermelding

Não informado. American Woods. U.S. Forest Service.

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