@misc{Peraldus_Guillelmus_(około_1190-1271)_Summa,
 author={Peraldus, Guillelmus (około 1190-1271) and http://viaf.org/viaf/186278683},
 howpublished={online},
 language={lat},
 type={text},
 title={Summa de virtutibus et vitiis. Tomus I},
 keywords={13 w., 15 w., dominikanie, teologia moralna},
}