APA
UNITED NATIONS E. C. F. E., UNITED NATIONS E. C. F. E., . (1961). Annual report. New York: UN.
Chicago
UNITED NATIONS ECONOMIC COMMISION FOR EUROPE, UNITED NATIONS ECONOMIC COMMISION FOR EUROPE, . 1961. Annual report. New York: UN.
Harvard
UNITED NATIONS E. C. F. E., UNITED NATIONS E. C. F. E., . (1961). Annual report. New York: UN.
MLA
UNITED NATIONS ECONOMIC COMMISION FOR EUROPE, UNITED NATIONS ECONOMIC COMMISION FOR EUROPE, . Annual report. New York: UN. 1961.
