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Optimum Enterprise Combinations and Risk-return Tradeoffs for Irrigated Farms
Bernard J. KolpChristian C. BurkhardtJames J. JacobsRichard ZinkGerald J. MichelsWilliam Hutchins
其他書名
Torrington-Wheatland Area
出版Agricultural Experiment Station, University of Wyoming, 1981
URLhttp://books.google.com.hk/books?id=36FRAQAAMAAJ&hl=&source=gbs_api