@misc{Blank-Weissenberg_Stefan_(1900–1940)_Barcie_1937,
 author={Blank-Weissenberg, Stefan (1900–1940)},
 copyright={Public Domain},
 address={Warszawa},
 howpublished={online},
 year={1937},
 publisher={Min. Roln. i R. R. [Ministerstwo Rolnictwa i Reform Rolnych]},
 language={pol},
 title={Barcie i kłody w Polsce},
 URL={http://rcin.org.pl/Content/11406/PDF/WA308_7998_II6416_BARCIE-I-KLODY.pdf},
 keywords={18th-20th c. -- Poland, ethnography of Poland, bee-keeping -- modern period-20th c., beehive -- natural beehives in hollows of trees, hollow log beehives},
}