Diseases of vegetable crops. 2nd ed.
Singh,R.S.
Diseases of vegetable crops. 2nd ed. - New Delhi Oxford 1987 - 362
Forestry
Diseases of Vegetable Horticulture
635
Diseases of vegetable crops. 2nd ed. - New Delhi Oxford 1987 - 362
Forestry
Diseases of Vegetable Horticulture
635