Basu, R. N. (1979). eradication of smallpox from India. World Health Organisation.
シカゴスタイル引用形Basu, R N. Eradication of Smallpox from India. New Delhi: World Health Organisation, 1979.
MLA引用形式Basu, R N. Eradication of Smallpox from India. World Health Organisation, 1979.
警告: この引用は必ずしも正確ではありません.