@misc{Gustmayer_Fabian_Epistola,
 author={Gustmayer, Fabian},
 howpublished={online},
 publisher={Dawid Fryderyk Rhete},
 language={łacina},
 language={polski},
 type={stary druk},
 title={Epistola Mercatoris cujusdam ad Equitem Polonum},
 keywords={stare druki, Gdańsk},
}