@misc{_Mapa_[ca,
 editor={Zaborski, Bogdan (1901–1985). Oprac.},
 editor={Lencewicz, Stanisław (1889–1944). Red.},
 copyright={Rights Reserved - Restricted Access},
 address={[S.l.]},
 howpublished={online},
 year={[ca 1922]},
 publisher={[s.n.]},
 language={pol},
 title={Mapa etnograficzna Polski},
 keywords={population, population maps, etnographic maps, Poland},
}