Cita APA

Basu, R. N. (1979). eradication of smallpox from India. World Health Organisation.

Citación estilo Chicago

Basu, R N. Eradication of Smallpox from India. New Delhi: World Health Organisation, 1979.

Cita MLA

Basu, R N. Eradication of Smallpox from India. World Health Organisation, 1979.