@misc{Polski_Rejestr_Statków_Procedural,
 author={Polski Rejestr Statków},
 howpublished={online},
 publisher={Polski Rejestr Statków},
 language={eng},
 title={Procedural requirements for laboratories : July 2020},
 type={e-książka},
 keywords={laboratoria, kontrola techniczna, statki},
}