@misc{,
 copyright={Public Domain},
 howpublished={online},
 language={pol},
 type={Text},
 URL={http://rcin.org.pl/ibd/Content/56943/PDF/WA488_3341_15939_Marchlewski.pdf},
 keywords={Chemistry - textbooks - 1900-1945, Physiology - textbooks - 1900-1945},
}