Seasonal changes of the pathogenic races of pyricularia oryze cav. at the IRRI blast nursery [microform]

Xehetasun bibliografikoak
Egile nagusia: Quamaruzzaman, Mohammad 1942-
Formatua: Visual Material
Argitaratua: Quezon City Photoduplication Service. University of the Philippines Library 1977.
Gaiak: