APA (7th ed.) Citation

Cicero, M. T., & Serafini, P. M. Tullii Ciceronis De Natura Deorum Liber Quartus: E Pervetusto Codice MS. Membranaceo Nunc Primum Edidit P. Seraphinus, Ord. Fr. Min.

Chicago Style (17th ed.) Citation

Cicero, Marcus Tullius, and Paolo Serafini. M. Tullii Ciceronis De Natura Deorum Liber Quartus: E Pervetusto Codice MS. Membranaceo Nunc Primum Edidit P. Seraphinus, Ord. Fr. Min.

MLA (9th ed.) Citation

Cicero, Marcus Tullius, and Paolo Serafini. M. Tullii Ciceronis De Natura Deorum Liber Quartus: E Pervetusto Codice MS. Membranaceo Nunc Primum Edidit P. Seraphinus, Ord. Fr. Min.

Warning: These citations may not always be 100% accurate.