Pesticides, crop protection and environment
Walia, S, Ed.; Parmar, B S, Ed.
Pesticides, crop protection and environment - - Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi 1995 - - .
Biological control of pests--agriculture-- Pest control
632.96 WAL-P
Pesticides, crop protection and environment - - Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi 1995 - - .
Biological control of pests--agriculture-- Pest control
632.96 WAL-P