Style de citation APA (7e éd.)

United States. Forest Service. Northern Region. (1944). Early days in the forest service. U.S.D.A. Forest Service, Northern Region.

Style de citation Chicago (17e éd.)

United States. Forest Service. Northern Region. Early Days in the Forest Service. Missoula, Mont.: U.S.D.A. Forest Service, Northern Region, 1944.

Style de citation MLA (8e éd.)

United States. Forest Service. Northern Region. Early Days in the Forest Service. U.S.D.A. Forest Service, Northern Region, 1944.

Attention : ces citations peuvent ne pas être correctes à 100%.