- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,088
- Pallai, Péter2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Bernanos, Georges1
- British Broadcasting Corporation, Written Archive Centre1
- Burnham, James1
- Dołęga-Kowalewski, Jerzy1
- Dutkiewicz, Józef1
- Free Europe Committee, Inc1
- Giertych, Jędrzej1
- Miłosz, Czesław1
- Munk, Andrzej1
- Norwid, Cyprian1
- Open Media Research Institute1
- Polish Unit of RFE/RL Research Institute; RFE/RL RI1
- Sosnkowski, Kazimierz1
- Ziemba, Stanisław1
- Łączkowski, Bohdan1
- Żyliński, Wiesław1