APA Edition Citation

Biswas, S. B., & Biswas, A. (1996). An introdution to viruses (4th rev. ed.). Vikas.

Chicago Edition Citation

Biswas, S. B., and Amita Biswas. An Introdution to Viruses. 4th rev. ed. New Delhi: Vikas, 1996.

MLA Edition Citation

Biswas, S. B., and Amita Biswas. An Introdution to Viruses. 4th rev. ed. Vikas, 1996.