Plask J E, Van Der
Plant diseases: Epidemics and control - Newyork, Academic press 1963 - 342
Plant pathology- Mathematical models/ Biological wasfare-Plant diseases
632.3 PLA
100
Plant diseases: Epidemics and control - Newyork, Academic press 1963 - 342
Plant pathology- Mathematical models/ Biological wasfare-Plant diseases
632.3 PLA
100