Plant pathology
Walker,John Charles
Plant pathology John Charles Walker - 3rd ed. - Delhi Tata McGraw-Hill 1972 - xi,819p.:ill.; 22cm.
581.2 / WAL
Plant pathology John Charles Walker - 3rd ed. - Delhi Tata McGraw-Hill 1972 - xi,819p.:ill.; 22cm.
581.2 / WAL