@misc{Maternicki_Jerzy_(1953–_)_Historia_1980,
 author={Maternicki, Jerzy (1953– )},
 volume={87},
 editor={Institute of History of the Polish Academy of Sciences},
 number={1},
 copyright={Rights Reserved - Free Access},
 journal={Kwartalnik Historyczny},
 address={Warszawa},
 howpublished={online},
 year={1980},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Historia w oczach socjologów : Ludwik Gumplowicz i Ludwik Krzywicki},
 type={Text},
 URL={http://rcin.org.pl/Content/4302/PDF/WA303_4843_A398-r1980-R87-nr1_Kwartalnik-Historyczny%2006%20Maternicki.pdf},
 keywords={Gumplowicz, Ludwik (1838-1909), Krzywicki, Ludwik (1859-1941), history and sociology},
}