Singh, R. S. (1975). Introduction to principles of plant pathology. Oxford & IBH publishing co. pvt. ltd.
Chicago Stili AlıntıSingh, R S. Introduction to Principles of Plant Pathology. New Delhi: Oxford & IBH publishing co. pvt. ltd, 1975.
MLA AlıntıSingh, R S. Introduction to Principles of Plant Pathology. Oxford & IBH publishing co. pvt. ltd, 1975.
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