M. Tulli Ciceronis De Re Publica Libri. E codice rescripto Vaticano Latino 5757 phototypice expressi. Prolegomena: De Fatis Bibliothecae Monasterii S. Columbani Bobiensis et de Codice ipso Vat.Lat.5757 [by Giovanni Mercati from material collected by Cardinal Franz Ehrle.]
Cicero, Marcus Tullius.
Rome, 
1934.