Columbia subject headings:
Crusades.
Jerusalem--History--Latin Kingdom, 1099-1244.
Saladin, Sultan of Egypt and Syria, 1137-1193.
Harvard subject headings:
Crusades
Jerusalem--History--Latin Kingdom, 1099-1244.
Saladin, Sultan of Egypt and Syria, 1137-1193
Princeton subject headings:
Crusades.
Jerusalem--History--Latin Kingdom, 1099-1244.
Saladin, Sultan of Egypt and Syria, 1137-1193.