APA
UNITED NATIONS I. E. A. S. A. (. o., UNITED NATIONS I. E. A. S. A. (. o., . (1991). Handbook of vital statistics systems and methods. New York: United Nations.
Chicago
UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Departments of--), UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Departments of--), . 1991. Handbook of vital statistics systems and methods. New York: United Nations.
Harvard
UNITED NATIONS I. E. A. S. A. (. o., UNITED NATIONS I. E. A. S. A. (. o., . (1991). Handbook of vital statistics systems and methods. New York: United Nations.
MLA
UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Departments of--), UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Departments of--), . Handbook of vital statistics systems and methods. New York: United Nations. 1991.
