Diseases of vegetable crops
Walker, John Charles
Diseases of vegetable crops by John Charles Walker - New York McGraw-Hill Book Co. 1952 - 529 p.
Crop Diseases
Vegetable
632 / W 181 D
Diseases of vegetable crops by John Charles Walker - New York McGraw-Hill Book Co. 1952 - 529 p.
Crop Diseases
Vegetable
632 / W 181 D