 | Digital computer simulation. | (3) |
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 | A simulation of irrigation systems : the effect of water supply and operating rules on production and income on irrigated farms / by Raymond L. Anderson and Arthur Maass. Anderson, Raymond Lloyd, 1927- 2n Washington : U.S. Dept. of Agriculture, 1971. | |
 | An economic analysis of carryover policies for the United States wheat industry / Luther Tweeten, Dale Kalbfleisch Y.C. Lu. Tweeten, Luther G. cn : Oklahoma State University, Agricultural ExperimentStation, 1971. | |
 | Sawmill simulation : data instructions and computer programs / by Hugh W. Reynolds. Reynolds, Hugh W. cn Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1970. | |
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