Walia, S .
Pesticides,crop protection and environment / - New Delhi : Oxford & IBH Publishing company , 1995. - 600 ; .
81 204 1019 X
632.95 / WAL/PE
Pesticides,crop protection and environment / - New Delhi : Oxford & IBH Publishing company , 1995. - 600 ; .
81 204 1019 X
632.95 / WAL/PE