APA
United Nations Economics Commission for Europe, United Nations Economics Commission for Europe, . (1979). Increasing use of continuous process in the iron a. New York: United Nations USA.
Chicago
United Nations Economics Commission for Europe, United Nations Economics Commission for Europe, . 1979. Increasing use of continuous process in the iron a. New York: United Nations USA.
Harvard
United Nations Economics Commission for Europe, United Nations Economics Commission for Europe, . (1979). Increasing use of continuous process in the iron a. New York: United Nations USA.
MLA
United Nations Economics Commission for Europe, United Nations Economics Commission for Europe, . Increasing use of continuous process in the iron a. New York: United Nations USA. 1979.