APA
World Health Organization, . (1983). Research needs for health for all by the year 2000. World Health Organization, New Delhi: .
Chicago
World Health Organization, . 1983. Research needs for health for all by the year 2000. World Health Organization, New Delhi: .
Harvard
World Health Organization, . (1983). Research needs for health for all by the year 2000. World Health Organization, New Delhi: .
MLA
World Health Organization, . Research needs for health for all by the year 2000. World Health Organization, New Delhi: . 1983.