On the Hazards of Overemphasizing numerical fluctuations in studies of "cyclic" phenomena in muskrat populations by Paul L. Errington. Journal Paper No. J-2392 0f the Iowa Agricultural Experiment Station, Ames, Iowa. Project No. 1217. Written in pen on cover: Obtained from M. L. Grant SCI 1962. Stamped on cover: Property of Raymond L. Sloan.
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Notes of Raymond L. Sloan
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