APA
"United Nations E. C. F. E., "United Nations E. C. F. E., . (1973). Long term aspects of plans and programmes. New: York United Nations U S A.
Chicago
"United Nations Economic Commission For Europe", "United Nations Economic Commission For Europe", . 1973. Long term aspects of plans and programmes. New: York United Nations U S A.
Harvard
"United Nations E. C. F. E., "United Nations E. C. F. E., . (1973). Long term aspects of plans and programmes. New: York United Nations U S A.
MLA
"United Nations Economic Commission For Europe", "United Nations Economic Commission For Europe", . Long term aspects of plans and programmes. New: York United Nations U S A. 1973.
