APA aipamena

United Nations Environment Programme. Activities of the United Nations Environment Programme in the combat against desertification (Nairobi, Kenya.).

Chicago Style aipamena

United Nations Environment Programme. Activities of the United Nations Environment Programme in the Combat Against Desertification. Nairobi, Kenya.

MLA aipamena

United Nations Environment Programme. Activities of the United Nations Environment Programme in the Combat Against Desertification. Nairobi, Kenya.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.