APA (7th ed.) Citation

Gentili, A., Rolfe, J. C., & Phillipson, C. (1964). De iure belli libri tres. Oceana [etc.].

Chicago Style (17th ed.) Citation

Gentili, Alberico, John Carew Rolfe, and Coleman Phillipson. De Iure Belli Libri Tres. New York [etc.]: Oceana [etc.], 1964.

MLA (9th ed.) Citation

Gentili, Alberico, et al. De Iure Belli Libri Tres. Oceana [etc.], 1964.