APA
World Health Organization, . (1981). Managerial process for National health development. W.H.O., Geneva: .
Chicago
World Health Organization, . 1981. Managerial process for National health development. W.H.O., Geneva: .
Harvard
World Health Organization, . (1981). Managerial process for National health development. W.H.O., Geneva: .
MLA
World Health Organization, . Managerial process for National health development. W.H.O., Geneva: . 1981.