@misc{Oncken_Hermann_(1869-1945)_Lassalle,
 author={Oncken, Hermann (1869-1945)},
 howpublished={online},
 publisher={Polskie Towarzystwo Nakładowe},
 language={pol},
 title={Lassalle},
 type={książka},
 keywords={Lassalle, Ferdinand (1825-1864)},
}