LAZARCIK, Gregor. Comparative Levels of Agricultural Output and Purchasing Powers of Currencies for Agricultural Products of Eastern European Countries, USSR, and USA, 1959, 1966, and 1970. 1. ed. New York : L.W. International Financial Research, 1975. 56 s. Occasional Papers of the Research Project on National Income in East Central Europe, 46. [Copy count : 1, currently available 1, at library only 0]