APA (7th ed.) Citation

Winbolt, S. E. (1945). Britain under the Romans. Penguin Books.

Chicago Style (17th ed.) Citation

Winbolt, S. E. Britain Under the Romans. Harmondsworth, Middlesex, Eng., New York: Penguin Books, 1945.

MLA (9th ed.) Citation

Winbolt, S. E. Britain Under the Romans. Penguin Books, 1945.