APA (7th ed.) Citation

Wheeler, S. M. (1955). Rome beyond the imperial frontiers. Penguin Books.

Chicago Style (17th ed.) Citation

Wheeler, Sir Mortimer. Rome Beyond the Imperial Frontiers. Middlesex: Penguin Books, 1955.

MLA (9th ed.) Citation

Wheeler, Sir Mortimer. Rome Beyond the Imperial Frontiers. Penguin Books, 1955.

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