Bhattacharya, S. (2006). Expunging variola: The control and eradication of smallpox in India, 1947-1977. Orient Longman.
Chicago-viite (17. p.)Bhattacharya, Sanjoy. Expunging Variola: The Control and Eradication of Smallpox in India, 1947-1977. New Delhi: Orient Longman, 2006.
MLA-viite (8. p.)Bhattacharya, Sanjoy. Expunging Variola: The Control and Eradication of Smallpox in India, 1947-1977. Orient Longman, 2006.
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