World health organization. (1986). The work of WHO 1984-1985: Biennial report of the director-general to the world health assembly and to the united nations. Geneva.
শিকাগো স্টাইলে সাইটেশনWorld health organization. The Work of WHO 1984-1985: Biennial Report of the Director-general to the World Health Assembly and to the United Nations. Geneva, 1986.
এমএলএ সাইটেশনWorld health organization. The Work of WHO 1984-1985: Biennial Report of the Director-general to the World Health Assembly and to the United Nations. Geneva, 1986.
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