APA
UNITED NATION E. C. F. E., UNITED NATION E. C. F. E., . (1984). Evolution of specific consumption of steel. New York: United Nations USA.
Chicago
UNITED NATION ECONOMIC COMMISSION FOR EUROPE, UNITED NATION ECONOMIC COMMISSION FOR EUROPE, . 1984. Evolution of specific consumption of steel. New York: United Nations USA.
Harvard
UNITED NATION E. C. F. E., UNITED NATION E. C. F. E., . (1984). Evolution of specific consumption of steel. New York: United Nations USA.
MLA
UNITED NATION ECONOMIC COMMISSION FOR EUROPE, UNITED NATION ECONOMIC COMMISSION FOR EUROPE, . Evolution of specific consumption of steel. New York: United Nations USA. 1984.