"Proceedings of a conference to commemorate the 50th anniversary of the Piłsudski Institute, held October 22-23, 1993 at Columbia University." and "Sponsored by the Piłsudski Institute and the Institute on East Central Europe, Columbia University."
"Proceedings of a conference to commemorate the 50th anniversary of the Piłsudski Institute, held October 22-23, 1993 at Columbia University." and "Sponsored by the Piłsudski Institute and the Institute on East Central Europe, Columbia University."