@misc{_Plan_[post,
 copyright={Public Domain},
 address={[S.l.]},
 howpublished={online},
 year={[post 1924]},
 publisher={[s.n.]},
 language={pol},
 title={Plan letniska Milanówek},
 keywords={street maps, Milanówek street maps, Milanówek, 20th century},
}