@misc{_Motyle_[ca,
 copyright={Public Domain},
 address={Warszawa},
 address={(Warszawa)},
 journal={Atlasiki Kieszonkowe},
 howpublished={online},
 year={[ca 1925]},
 publisher={Wydawnictwo M. Arcta},
 publisher={(Druk M. Arct)},
 language={pol},
 title={Motyle : 129 rysunków kolorowych},
 URL={http://rcin.org.pl/miiz/Content/25735/PDF/WA058_39752_K2369-2_Motyle.pdf},
 keywords={insects, Lepidoptera, butterflies - pictorial works},
}