TY  - BOOK
AU  - Mullin, R. S.
TI  - Comparative dusts for powdery mildew of beans
KW  - Cenicilla polvorienta del frijol
KW  - Erysyphe polygoni
N1  - Sobretiro de: Transactions of Peninsula Horticultural Science. 1958, pp. 1-2
ER  -