Columbia subject headings:
Crusades--Periodicals.
Middle East--History--Periodicals.
Harvard subject headings:
Crusades--Periodicals.
Middle East--History--Periodicals.
Princeton subject headings:
Church history--Middle Ages, 600-1500--Periodicals.
Crusades--History--Periodicals.
Jerusalem--History--Latin Kingdom, 1099-1244--Periodicals.
Latin Orient--Periodicals.
Middle Ages--History--Sources--Periodicals.
Periodicals.