APA

Biswas S. . B., Biswas A., . (1996). An Introduction To Viruses. New Delhi: Vikas Publishing House PVT Ltd.

Chicago

Biswas S B, Biswas Amita, . 1996. An Introduction To Viruses. New Delhi: Vikas Publishing House PVT Ltd.

Harvard

Biswas S. . B., Biswas A., . (1996). An Introduction To Viruses. New Delhi: Vikas Publishing House PVT Ltd.

MLA

Biswas S B, Biswas Amita, . An Introduction To Viruses. New Delhi: Vikas Publishing House PVT Ltd. 1996.