APA (7e ed.) Bronvermelding

Não informado. (2022). USDA Forest Service Research Note NE. Northeastern Forest Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. USDA Forest Service Research Note NE. Upper Darby, Pa: Northeastern Forest Experiment Station, 2022.

MLA (8e ed.) Bronvermelding

Não informado. USDA Forest Service Research Note NE. Northeastern Forest Experiment Station, 2022.

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