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International trade in farm and food products : 7. Finnish-Hungarian-Polish Seminar on Agricultural Economics, Eger, Hungary, 5 - 9 October, 1987
Bisztray, Ádám, (1987)
Problemy wspólpracy z zagranica̜
(1984)
Poland's foreign trade and economic development in the years 1961-1975
Bożyk, Paweł, (1973)
Marketing w handlu zagranicznym
Białecki, Klemens, (1980)
Marketing Polish industrial goods in the United States
Miller, Joseph C., (1981)
Marketing w gospodarce socjalistycznej
Białecki, Klemens, (1975)