Yazar
m w nielson
2 cilt bulundu.
Cilt sonuçları
Sources of resistance in alfalfa to Lygus hesperus Knight
M. W. Nielson · U.S. Dept. of Agriculture, Agricultural Research Service
Sayfa sayısı yok · 1974
Alfalfa / Disease and pest resistance
Leafhoppers (Cicadellidae)
Paul Oman, P. W. Oman, W. J. Knight, M. W. Nielson · CABI
376 sayfa · 1990
Bibliography / Leafhoppers / Bibliographies, catalogues, discographies / Invertebrates / c 1945 to c 1960