APA (7e ed.) Bronvermelding

Gibson, Y. Rangeland Ecosystems of the Western US (1st Edition.). Oregon State University.

Chicago (17e ed.) Bronvermelding

Gibson, Yvette. Rangeland Ecosystems of the Western US. 1st Edition. Corvallis, Oregon: Oregon State University.

MLA (9e ed.) Bronvermelding

Gibson, Yvette. Rangeland Ecosystems of the Western US. 1st Edition. Oregon State University.

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