:LAZARCIK, Gregor. Czechoslovak Agricultural Output, Expenses, Gross and Net Product, and Productivity 1934-1938 and 1946-1962. 1. ed. New York : Columbia University, 1965. 33 s. Occasional Papers of the Research Project on National Income in East Central Europe, 7. [Počet ex. : 1, z toho voľných 1, prezenčne 0]