Kula, E. (1998). History of environmental economic thought. Routledge.
芝加哥风格引文Kula, Erhun. History of Environmental Economic Thought. London ; New York: Routledge, 1998.
MLA引文Kula, Erhun. History of Environmental Economic Thought. Routledge, 1998.
警告：这些引文格式不一定是100％准确.