Basu, R. N. (1979). eradication of smallpox from India. World Health Organisation.
Style de citation ChicagoBasu, R N. Eradication of Smallpox from India. New Delhi: World Health Organisation, 1979.
Style de citation MLABasu, R N. Eradication of Smallpox from India. World Health Organisation, 1979.
Attention : ces citations peuvent ne pas être correctes à 100%.