@misc{_Morwa_1929,
 editor={Towarzystwo Popierania Jedwabnictwa w Polsce},
 copyright={Public Domain},
 address={Warszawa},
 howpublished={online},
 year={1929},
 language={pol},
 title={Morwa biała},
 type={Text},
 URL={http://rcin.org.pl/miiz/Content/70884/PDF/WA058_90838_K18941_Morwa-biala-Tow.pdf},
 keywords={Morus alba, mulberry - crops - handbooks},
}