APA (7e ed.) Bronvermelding

(1980). Case studies on desertification (Natural Resources Research XVIII). Unesco/UNEP/UNDP.

Chicago (17e ed.) Bronvermelding

Case Studies on Desertification (Natural Resources Research XVIII). Paris: Unesco/UNEP/UNDP, 1980.

MLA (9e ed.) Bronvermelding

Case Studies on Desertification (Natural Resources Research XVIII). Unesco/UNEP/UNDP, 1980.

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