Dyfyniad APA

Bhattacharya, S. (2006). Expunging variola: The control and eradication of smallpox in India, 1947-1977. Orient Longman.

Dyfyniad Arddull Chicago

Bhattacharya, Sanjoy. Expunging Variola: The Control and Eradication of Smallpox in India, 1947-1977. New Delhi: Orient Longman, 2006.

Dyfyniad MLA

Bhattacharya, Sanjoy. Expunging Variola: The Control and Eradication of Smallpox in India, 1947-1977. Orient Longman, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.