@misc{Polski_Rejestr_Statków_Recommendations,
 author={Polski Rejestr Statków},
 howpublished={online},
 publisher={Polski Rejestr Statków},
 language={eng},
 title={Recommendations on voyage data recorder : 2019 July},
 type={e-książka},
 keywords={statki, kontrola techniczna},
}