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Statistik des Königreichs Ungern ; T. 1
Schwartner, Martin von, (1809)
Polska, 1946-1983 : 40 lat PRL
Gradowski, Lech, (1984)
Soviet economic facts : 1917 - 81
Clarke, Roger A., (1983)
The second Five-Year Development Plan, 1981-1985
(1981)