Photos of Karol Popiel. Speech of prof. Edward Szczepanik after death of Karol Popiel, Rome 10 June 1977.
Letters to Konrad Sieniewicz from Cyprian Odorkiewicz.
CHRISTIAN DEMOCRATIC REVIEW published by Christian Democratic Union of Central Europe (in English): No.21/56-30/56.
Letters to Konrad Sieniewicz from Franciszek Gałązka.
Abstract from ODNOWA concerning activities of Karol Popiel and the Stronnictwo Pracy in Poland, July 1945 - September 1946.
NOUVEL HORIZON published by Christian Democratic Union of Central Europe, Paris in France, No. 1/55-4/55;5/56-14/56; 16/56-19/56; 22/56; BULLETIN D'INFORMATION (in French) No.3-4/55.
Correspondence between S. Kirkor and T.S. Ullman in issue of publishing book about Wojciech Korfanty. Photocopies of original files from Silesian Uprising.
Post-war reflections, reports by members of PLCP, London 1947.
Komitet Obrony Demokratycznej Polski in New York - Appeals and press clippings.
Polish and Czech cooperation in Federalism program. "Movement European - Basis for an Eastern European Policy". United Nations of Europe.