@misc{Polski_Rejestr_Statków_Guidelines,
 author={Polski Rejestr Statków},
 howpublished={online},
 publisher={Polski Rejestr Statków},
 language={eng},
 title={Guidelines for design, installation and type testing for fixed fire-extinguishing systems used onboard ships : July 2021},
 type={e-książka},
 keywords={ochrona przeciwpożarowa, statki, akty prawne},
}