APA
World Health Organization, . (1981). Global strategy for health for all by the year 2000. W.H.O., Geneva: .
Chicago
World Health Organization, . 1981. Global strategy for health for all by the year 2000. W.H.O., Geneva: .
Harvard
World Health Organization, . (1981). Global strategy for health for all by the year 2000. W.H.O., Geneva: .
MLA
World Health Organization, . Global strategy for health for all by the year 2000. W.H.O., Geneva: . 1981.