APA
United Nations Children's Fund, . (1985). Universal child immunization by 1990. United Nations Children's Fund: .
Chicago
United Nations Children's Fund, . 1985. Universal child immunization by 1990. United Nations Children's Fund: .
Harvard
United Nations Children's Fund, . (1985). Universal child immunization by 1990. United Nations Children's Fund: .
MLA
United Nations Children's Fund, . Universal child immunization by 1990. United Nations Children's Fund: . 1985.