APA
UNITED NATIONS I. E. A. S. A. (. o., UNITED NATIONS I. E. A. S. A. (. o., . (1988). Population bulletin of the United Nations. New York: UN.
Chicago
UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Departments of-), UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Departments of-), . 1988. Population bulletin of the United Nations. New York: UN.
Harvard
UNITED NATIONS I. E. A. S. A. (. o., UNITED NATIONS I. E. A. S. A. (. o., . (1988). Population bulletin of the United Nations. New York: UN.
MLA
UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Departments of-), UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Departments of-), . Population bulletin of the United Nations. New York: UN. 1988.