Winpenny, J. T. (1991). Values for the environment: A guide to economic appraisal. Overseas Development Inst..
芝加哥风格引文Winpenny, James T. Values for the Environment: A Guide to Economic Appraisal. London: Overseas Development Inst., 1991.
MLA引文Winpenny, James T. Values for the Environment: A Guide to Economic Appraisal. Overseas Development Inst., 1991.
警告：这些引文格式不一定是100％准确.