@misc{Beksiak_Janusz_(1929-2014)_Ekonomia,
 author={Beksiak, Janusz (1929-2014)},
 howpublished={online},
 publisher={Wydawnictwo C. H. Beck},
 language={pol},
 title={Ekonomia : kurs podstawowy},
 type={książka},
 keywords={ekonomia},
}