APA (7th ed.) Citation

Wiet, G. (1975). The great medieval civilizations. Allen & Unwin.

Chicago Style (17th ed.) Citation

Wiet, Gaston. The Great Medieval Civilizations. London: Allen & Unwin, 1975.

MLA (9th ed.) Citation

Wiet, Gaston. The Great Medieval Civilizations. Allen & Unwin, 1975.

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