APA (7e ed.) Bronvermelding

Não informado. (2001). Special paper. Department of Natural Resources.

Chicago (17e ed.) Bronvermelding

Não informado. Special Paper. Québec, Canadá: Department of Natural Resources, 2001.

MLA (8e ed.) Bronvermelding

Não informado. Special Paper. Department of Natural Resources, 2001.

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