APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.