Vaughan, J. P., & Morrow, R. H. (1989). Manual of epidemology for district health management. World Health Organisation.
Chicago Style aipamenaVaughan, J P., and R H. Morrow. Manual of Epidemology for District Health Management. Geneva: World Health Organisation, 1989.
MLA aipamenaVaughan, J P., and R H. Morrow. Manual of Epidemology for District Health Management. World Health Organisation, 1989.
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