APA (7th ed.) Citation

Platnauer, M. (1918). The life and reign of the emperor Lucius Septimius Severus. Humphrey Milford.

Chicago Style (17th ed.) Citation

Platnauer, Maurice. The Life and Reign of the Emperor Lucius Septimius Severus. London: Humphrey Milford, 1918.

MLA (9th ed.) Citation

Platnauer, Maurice. The Life and Reign of the Emperor Lucius Septimius Severus. Humphrey Milford, 1918.

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