APA

Verma U., . (2009). International encyclopedia of chemical and biological weapons and warfares. New Delhi: Anmol Publishers.

Chicago

Verma U.S, . 2009. International encyclopedia of chemical and biological weapons and warfares. New Delhi: Anmol Publishers.

Harvard

Verma U., . (2009). International encyclopedia of chemical and biological weapons and warfares. New Delhi: Anmol Publishers.

MLA

Verma U.S, . International encyclopedia of chemical and biological weapons and warfares. New Delhi: Anmol Publishers. 2009.