APA Edition Citation

Walia, S. . .., & Parmar, B. S. . .. (1995). Pesticides,crop protection and environment. Oxford & IBH Publishing company.

Chicago Edition Citation

Walia, S ., and B S. Parmar. Pesticides,crop Protection and Environment. New Delhi: Oxford & IBH Publishing company, 1995.

MLA Edition Citation

Walia, S ., and B S. Parmar. Pesticides,crop Protection and Environment. Oxford & IBH Publishing company, 1995.