APA (7e ed.) Bronvermelding

Não informado. (1945). Station paper. U.S. Lake States Forest Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. Station Paper. Washington: U.S. Lake States Forest Experiment Station, 1945.

MLA (8e ed.) Bronvermelding

Não informado. Station Paper. U.S. Lake States Forest Experiment Station, 1945.

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