(1998). Institute of Political Studies Polish Academy of Sciences. ISPPAN.
Citazione stile Chigago Style (17a edizione)Institute of Political Studies Polish Academy of Sciences. Warszawa: ISPPAN, 1998.
Citatione MLA (9a ed.)Institute of Political Studies Polish Academy of Sciences. ISPPAN, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.