APA
"UNITED NATION E. C. F. E. (. o., "UNITED NATION E. C. F. E. (. o., . (1966). Ecnomics aspects of iron-ore preparation. Geneva: United Nations.
Chicago
"UNITED NATION ECONOMIC COMMISSION FOR EUROPE (Secretariat of-).", "UNITED NATION ECONOMIC COMMISSION FOR EUROPE (Secretariat of-).", . 1966. Ecnomics aspects of iron-ore preparation. Geneva: United Nations.
Harvard
"UNITED NATION E. C. F. E. (. o., "UNITED NATION E. C. F. E. (. o., . (1966). Ecnomics aspects of iron-ore preparation. Geneva: United Nations.
MLA
"UNITED NATION ECONOMIC COMMISSION FOR EUROPE (Secretariat of-).", "UNITED NATION ECONOMIC COMMISSION FOR EUROPE (Secretariat of-).", . Ecnomics aspects of iron-ore preparation. Geneva: United Nations. 1966.
