(1980). Case studies on desertification (Natural Resources Research XVIII). Unesco/UNEP/UNDP.
芝加哥风格引文Case 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:这些引文格式不一定是100%准确.