The first crusade : a new history

MLA

Asbridge, Thomas S. The First Crusade : a New History. New York: Free Press, 2004.

APA

Asbridge, T. S. (2004). The first crusade : a new history. New York: Free Press.

Chicago

Asbridge, Thomas S., The First Crusade: A New History. New York: Free Press, 2004.