@misc{Cicero_Marcus_Tullius_(106-43_p.n.e.)_Marci, author={Cicero, Marcus Tullius (106-43 p.n.e.)}, howpublished={online}, publisher={Martin Landsberg}, language={lat}, title={Marci Tulii Ciceronis [...] ad Marcum Ciceronem filium suum officiorum liber incipit}, type={stary druk}, }