Yazar
Arnold Parker Sturtevant
3 cilt bulundu.
Cilt sonuçları
The sterilization of American foulbrood combs
Arnold Parker Sturtevant · U.S. Dept. of Agriculture
29 sayfa · 1926
American foulbrood / Prevention / Bees / Diseases
A study of the behavior of bees in colonies affected by European foulbrood
Arnold Parker Sturtevant · U.S. Dept. of Agriculture
28 sayfa · 1920
European foulbrood / Bees / Diseases