Fronto, M. C. 1., & Haines, C. R. (1962). The correspondence of Marcus Cornelius Fronto with Marcus Aurelius Antoninus, Lucius Verus, Antonius Pius, and various friends: In two volumes (Rev. and repr.). Heinemann.
Chicago Style (17th ed.) CitationFronto, Marcus Cornelius 100-170, and Charles Reginald Haines. The Correspondence of Marcus Cornelius Fronto with Marcus Aurelius Antoninus, Lucius Verus, Antonius Pius, and Various Friends: In Two Volumes. Rev. and repr. London: Heinemann, 1962.
MLA (8th ed.) CitationFronto, Marcus Cornelius 100-170, and Charles Reginald Haines. The Correspondence of Marcus Cornelius Fronto with Marcus Aurelius Antoninus, Lucius Verus, Antonius Pius, and Various Friends: In Two Volumes. Rev. and repr. Heinemann, 1962.
Warning: These citations may not always be 100% accurate.