APA
UNITED NATIONS E. A. S. A. (. o., UNITED NATIONS E. A. S. A. (. o., . (1970). World energy supplies,1965-1968. New York: United Nations.
Chicago
UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Department of-), UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Department of-), . 1970. World energy supplies,1965-1968. New York: United Nations.
Harvard
UNITED NATIONS E. A. S. A. (. o., UNITED NATIONS E. A. S. A. (. o., . (1970). World energy supplies,1965-1968. New York: United Nations.
MLA
UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Department of-), UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Department of-), . World energy supplies,1965-1968. New York: United Nations. 1970.
