@misc{Rundstein_Szymon_(1876-1942)_Zasady,
 author={Rundstein, Szymon (1876-1942)},
 howpublished={online},
 publisher={F. Hoesick},
 language={Polish},
 title={Zasady teorji prawa},
 type={book},
 keywords={legal norm, theory of law, legal history},
}