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A Technical Study of Insects Affecting the Sycamore Tree in Southern California
Gerald W. Dean, Kenneth Appleby Wagnon, Leland R Brown, Mary Ann Morris, Olan D. Forker, Robert Van den Bosch, William A. Dost · Yayınevi bilinmiyor
1146 sayfa · 1964
Acer pseudoplatanus
Analysis of Factors Influencing Shell-Egg Distribution Costs
Cornell University Agricultural Experiment Station, Ithaca, N.Y. Dept. of Agricultural Economics, Geoffrey H. Jackson, Olan D. Forker, Department of Agricultural Economics, Cornell University Agricultural Experiment Station, New York State College of Agriculture · Yayınevi bilinmiyor
36 sayfa · 1970
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