APA
World Health Organization, . (1981). Development of indicators for monitoring progress towards health for all by the year 2000. W.H.O., Geneva: .
Chicago
World Health Organization, . 1981. Development of indicators for monitoring progress towards health for all by the year 2000. W.H.O., Geneva: .
Harvard
World Health Organization, . (1981). Development of indicators for monitoring progress towards health for all by the year 2000. W.H.O., Geneva: .
MLA
World Health Organization, . Development of indicators for monitoring progress towards health for all by the year 2000. W.H.O., Geneva: . 1981.