APA
UNITED NATIONS E. A. S. A., UNITED NATIONS E. A. S. A., . (1957). Population and vital statistics report. New York: UN.
Chicago
UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS, UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS, . 1957. Population and vital statistics report. New York: UN.
Harvard
UNITED NATIONS E. A. S. A., UNITED NATIONS E. A. S. A., . (1957). Population and vital statistics report. New York: UN.
MLA
UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS, UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS, . Population and vital statistics report. New York: UN. 1957.
