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Mathematical Functions for Predicting Growth and Yield of Black Walnut Plantations in the Central States
Raymond S. FerellAllen L. Lundgren
出版U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station, 1976
URLhttp://books.google.com.hk/books?id=FL_iwmmRCHQC&hl=&source=gbs_api
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