@misc{Stany_Zjednoczone._Army_Map_Service._Wydawca_Railroad_1945,
 author={Stany Zjednoczone. Army Map Service. Wydawca},
 copyright={Public Domain},
 address={Washington, D.C.},
 journal={Railroad map of Germany 1:750,000},
 howpublished={online},
 year={1945},
 publisher={Army Map Service, U.S. Army},
 language={eng},
 type={Image},
 title={Railroad map of Germany 1:750,000. Sheet 1, Hamburg},
 URL={http://www.rcin.org.pl/Content/91984/PDF/WA51_94443_PTGC95-1-r1945_Railroad-map-of-Germany-Hamburg.pdf},
 keywords={Hamburg region, communication maps, railway maps},
}