- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,259
- Pallai, Péter2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Alfred A. Reisch1
- Bednarczyk, Czesław1
- Boguslawski, Andrzej1
- British Broadcasting Corporation, Written Archive Centre1
- Bujnowski, Józef1
- Facchinetti, Władysław1
- Free Europe Committee, Inc1
- Gniatczyński, Wojciech1
- Kościałkowski, Stanisław1
- Open Media Research Institute1
- Polish Unit of RFE/RL Research Institute; RFE/RL RI1
- Sokolnicki, Michał1
- Soviet Red Archives1
- Zywulska, Krystyna1