:LAZARCIK, Gregor - WYNNYCZUK, Alexej. Bulgaria : Index of Government Services, Trade, Banking and Insurance, and Communal Services 1939 and 1948-1965. 1. ed. New York : Columbia University, 1968. 30 s. Occasional Papers of the Research Project on National Income in East Central Europe, 28. [Počet ex. : 1, z toho voľných 1, prezenčne 0]