@misc{Duclaux_Emil_(1840-1904)_Higjena,
 author={Duclaux, Emil (1840-1904)},
 howpublished={online},
 publisher={Warszawa : Ogniwa},
 language={pol},
 type={książka},
 title={Higjena społeczna},
 keywords={Higiena, Medycyna społeczna},
}