@misc{_Varsovie_[post,
 copyright={Public Domain},
 address={Łódź},
 howpublished={online},
 year={[post 1909]},
 publisher={Lit. A. Resiger},
 language={fre},
 language={pol},
 language={rus},
 title={Varsovie [plan miasta na serwetce Chocolaterie Suisse G. G. Lardelli]},
 keywords={street maps, Warsaw street maps, paper napkins, 20th century},
}