- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)2,695
- Munk, Andrzej3
- Pallai, Péter2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Sokolnicki, Michał2
- Alfred A. Reisch1
- Bednarczyk, Czesław1
- Bernanos, Georges1
- Bochenski, Joseph M.1
- Boguslawski, Andrzej1
- British Broadcasting Corporation, Written Archive Centre1
- Bujnowski, Józef1
- Burnham, James1
- Dołęga-Kowalewski, Jerzy1
- Dutkiewicz, Józef1
- Dąbrowski, Roman1
- Facchinetti, Władysław1
- Felsztyn, Tadeusz1
- Free Europe Committee, Inc1
- Giertych, Jędrzej1