APA
Economic Commission for Europe (ECE), . (1991). Economic Reforms and Their Significance for All-European Co-Operation. New York: United Nations.
Chicago
Economic Commission for Europe (ECE), . 1991. Economic Reforms and Their Significance for All-European Co-Operation. New York: United Nations.
Harvard
Economic Commission for Europe (ECE), . (1991). Economic Reforms and Their Significance for All-European Co-Operation. New York: United Nations.
MLA
Economic Commission for Europe (ECE), . Economic Reforms and Their Significance for All-European Co-Operation. New York: United Nations. 1991.