@misc{Marcet_Mary's,
 author={Marcet},
 copyright={PAN Biblioteka Kórnicka},
 howpublished={online},
 publisher={Longmans, Green, and Co.},
 language={eng},
 type={podręczniki},
 title={Mary's grammar: interspersed with stories and intended for the use of children},
 keywords={język angielski gramatyka},
}