Plant Protection
Mehta, P R
Plant Protection by P R Mehta and B K Varma - - New Delhi Ministry of Food, Agriculture, Community Develp & Co-operation 1968 - xiii,587p.
Agriculture
632 / MEH V
Plant Protection by P R Mehta and B K Varma - - New Delhi Ministry of Food, Agriculture, Community Develp & Co-operation 1968 - xiii,587p.
Agriculture
632 / MEH V