@misc{_Der_[1940],
 copyright={Public Domain},
 address={[Miejsce nieznane]},
 howpublished={online},
 year={[1940]},
 publisher={[wydawca nieznany]},
 language={ger},
 title={Der Kanal 1:250 000. Blatt Nr. 1a, Zusammendruck Norwich - Antwerpen},
 type={Image},
 URL={http://www.rcin.org.pl/igipz/Content/214108/PDF/WA51_220759_PANC780-2-r1940_Der-Kanal-1-250-000.pdf},
 keywords={The English Channel coast (France), The English Channel coast (Great Britain), Plymouth (Great Britain; region), Antwerp (Belgium), topographic maps},
}