Kazmierczyk, A. (2002). Jakub Becal: King Jan III Sobieski's jewish factor. Polin.
Lua i Stíl Chicago (17ú heag.)Kazmierczyk, Adam. "Jakub Becal: King Jan III Sobieski's Jewish Factor." Polin 2002.
Lua MLA (8ú heag.)Kazmierczyk, Adam. "Jakub Becal: King Jan III Sobieski's Jewish Factor." Polin, 2002.
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