1. Bulgaria
:LAZARCIK, Gregor - WYNNYCZUK, Alexej. Bulgaria : Indexes of Construction, Investment, Housing, and Transportation and Communications, 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, 30. [Copy count : 1, currently available 1, at library only 0]