@misc{Schumacher_Hermann_Albert_(1839-1890)_Das,
 author={Schumacher, Hermann Albert (1839-1890)},
 address={Berlin},
 howpublished={online},
 publisher={C. G. Lüderitz'sche Verlagsbuchhandlung A. Charisius},
 language={ger},
 title={Das Rettungswesen zur See},
 type={książka},
 keywords={Ratownictwo morskie},
}