(1980). Case studies on desertification (Natural Resources Research XVIII). Unesco/UNEP/UNDP.
Chicago Style (17th ed.) CitationCase Studies on Desertification (Natural Resources Research XVIII). Paris: Unesco/UNEP/UNDP, 1980.
MLA引文Case Studies on Desertification (Natural Resources Research XVIII). Unesco/UNEP/UNDP, 1980.
警告:這些引文格式不一定是100%准確.