Cita APA (7a ed.)

Biblioteka Narodowa (Warszawa). (1991). Polish Libraries Today. National Library.

Cita Chicago Style (17a ed.)

Biblioteka Narodowa (Warszawa). Polish Libraries Today. Warsaw: National Library, 1991.

Cita MLA (9a ed.)

Biblioteka Narodowa (Warszawa). Polish Libraries Today. National Library, 1991.