APA (7th ed.) Citation

Hamilton, B., France, J., & Zajac, W. G. (1998). The crusades and their sources: Essays presented to Bernard Hamilton. Ashgate.

Chicago Style (17th ed.) Citation

Hamilton, Bernard, John France, and William G. Zajac. The Crusades and Their Sources: Essays Presented to Bernard Hamilton. Aldershot, Hampshire, Great Britain ; Brookfield, Vt.: Ashgate, 1998.

MLA (9th ed.) Citation

Hamilton, Bernard, et al. The Crusades and Their Sources: Essays Presented to Bernard Hamilton. Ashgate, 1998.