APA
United Nation. Economic Commission for Europe, . (1970). Development of production technology and new properties of steel products. New York: United Nations.
Chicago
United Nation. Economic Commission for Europe, . 1970. Development of production technology and new properties of steel products. New York: United Nations.
Harvard
United Nation. Economic Commission for Europe, . (1970). Development of production technology and new properties of steel products. New York: United Nations.
MLA
United Nation. Economic Commission for Europe, . Development of production technology and new properties of steel products. New York: United Nations. 1970.