Radke, G. M. (1996). Viterbo: Profile of a thirteenth century Papal Palace. Cambridge University Press.
Chicago Style (17th ed.) CitationRadke, Gary M. Viterbo: Profile of a Thirteenth Century Papal Palace. Cambridge: Cambridge University Press, 1996.
MLA (9th ed.) CitationRadke, Gary M. Viterbo: Profile of a Thirteenth Century Papal Palace. Cambridge University Press, 1996.
Warning: These citations may not always be 100% accurate.