Yazar
Harvey Leroy Sweetman
3 cilt bulundu.
Cilt sonuçları
The principles of biological control
Harvey Leroy Sweetman · W.C. Brown Co.
560 sayfa · 1958
Agricultural pests / Biological control / Injurious and beneficial Insects / Insects, Injurious and beneficial / Pests
The biological control of insects
Harvey Leroy Sweetman · Comstock Publishing Company, inc.
461 sayfa · 1936
Control / Insect pests / Biological control / Weeds / Pests