@misc{Heldt_Peter_Martin_(1875-_)._High-speed,
 author={Heldt, Peter Martin (1875- ).},
 howpublished={online},
 publisher={Iliffe & Sons},
 language={eng},
 type={książka},
 type={dokument piśmienniczy},
 title={High-speed Diesel engines : for automotive, aeronautical, marine, railroad and industrial use, with chapters on other types of oil engines and gas turbines},
}