APA (7th ed.) Citation

Gertwagen, R., & Jeffreys, E. (2012). Shipping, trade and crusade in the medieval Mediterranean: Studies in honour of John Pryor. Ashgate.

Chicago Style (17th ed.) Citation

Gertwagen, Ruth, and Elizabeth Jeffreys. Shipping, Trade and Crusade in the Medieval Mediterranean: Studies in Honour of John Pryor. Farnham, Surrey ; Burlington, VT: Ashgate, 2012.

MLA (9th ed.) Citation

Gertwagen, Ruth, and Elizabeth Jeffreys. Shipping, Trade and Crusade in the Medieval Mediterranean: Studies in Honour of John Pryor. Ashgate, 2012.