APA
UNITED NATIONS E. A. S. A. (. o., UNITED NATIONS E. A. S. A. (. o., . (1970). Short manual on Sampling. New York: United Nations.
Chicago
UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Dept of--), UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Dept of--), . 1970. Short manual on Sampling. New York: United Nations.
Harvard
UNITED NATIONS E. A. S. A. (. o., UNITED NATIONS E. A. S. A. (. o., . (1970). Short manual on Sampling. New York: United Nations.
MLA
UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Dept of--), UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Dept of--), . Short manual on Sampling. New York: United Nations. 1970.
