Cren, E. L. (1980). The functioning of freshwater ecosystems. Cambridge University Press.
芝加哥风格引文Cren, E.D. Le. The Functioning of Freshwater Ecosystems. Cambridge: Cambridge University Press, 1980.
MLA引文Cren, E.D. Le. The Functioning of Freshwater Ecosystems. Cambridge University Press, 1980.
警告：这些引文格式不一定是100％准确.