@misc{Keckermann_Bartholomeus_Systema, author={Keckermann, Bartholomeus}, howpublished={online}, publisher={apud Guilielmum Antonium}, language={lat}, title={Systema Logicae : Tribus Libris Adornatum, Pleniore Praeceptorum Methodo, & Commentariis scriptis ad Praeceptorum ...}, type={stary druk}, keywords={Keckermann, Bartłomiej (1572-1609), logika a nauka}, }