APA (7th ed.) Citation

Walbank, F. W. (1957). A historical commentary on Polybius. Oxford at the Clarendon Press.

Chicago Style (17th ed.) Citation

Walbank, Frank William. A Historical Commentary on Polybius. Londres: Oxford at the Clarendon Press, 1957.

MLA (9th ed.) Citation

Walbank, Frank William. A Historical Commentary on Polybius. Oxford at the Clarendon Press, 1957.