@misc{Polski_Rejestr_Statków_Rules,
 author={Polski Rejestr Statków},
 howpublished={online},
 publisher={Polski Rejestr Statków},
 language={eng},
 title={Rules for the classification and construction of small sea-going ships. Pt. 3, Hull equipment : 2019 March},
 type={e-książka},
 keywords={kadłuby okrętowe, maszyny okrętowe},
}