APA
Williamson J., . (1991). The Economic Opening of Eastern Europe. Washington D.C: Institute for International Economics.
Chicago
Williamson John, . 1991. The Economic Opening of Eastern Europe. Washington D.C: Institute for International Economics.
Harvard
Williamson J., . (1991). The Economic Opening of Eastern Europe. Washington D.C: Institute for International Economics.
MLA
Williamson John, . The Economic Opening of Eastern Europe. Washington D.C: Institute for International Economics. 1991.