@misc{_Steamship_1953,
 copyright={Public Domain},
 address={London},
 howpublished={online},
 year={1953},
 publisher={published at the Admiralty},
 language={eng},
 title={Steamship routes Indian Ocean},
 type={Image},
 URL={http://www.rcin.org.pl/igipz/Content/215632/PDF/WA51_224192_PAND1807-r1953_Steamship-routes-Indian-O_0001.pdf},
 keywords={transport maps, navigation, maritime transport, Indian Ocean},
}