[the authors: L.D. Tukey, N.M. Kauffman and E.V. Welser] Pennsylvania State University, College of Agriculture, Agricultural Experiment Station 1965
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[ed. by] Pennsylvania State University Pennsylvania State University, College of Agriculture Agricultural Experiment Station 1963
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the Pennsylvania State University, College of Agriculture, Agricultural Experiment Station Pennsylvania State University, College of Agriculture, Agricultural Experiment Station 1953
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Volumes of this title Pennsylvania State University, College of Agriculture, Agricultural Experiment Station
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the Pennsylvania State University Pennsylvania State University, College of Agriculture, Agricultural Experiment Station
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