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benjamin f detroy
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Trapping pollen from honey bee colonies
Benjamin F. Detroy · U.S. Dept. of Agriculture, Agricultural Research Service : for sale by the Supt. of Doc., U.S. Govt. Print. Off.
11 sayfa · 1976
Pollen / Bees / Bee culture
A cloth strainer for honey conditioning systems
Benjamin F. Detroy · Agricultural Research Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1966
Honey