APA
World Health Organization, . (1981). National decision-making for primary health care. World Health Oranisation, Geneva: .
Chicago
World Health Organization, . 1981. National decision-making for primary health care. World Health Oranisation, Geneva: .
Harvard
World Health Organization, . (1981). National decision-making for primary health care. World Health Oranisation, Geneva: .
MLA
World Health Organization, . National decision-making for primary health care. World Health Oranisation, Geneva: . 1981.