Columbia subject headings:
Harvard subject headings:
Crusades--Sources
Crusades.
Godfrey, of Bouillon, approximately 1060-1100.
Palestine--Description and travel
Palestine--Description and travel--Before 1800.
Palestine--Description and travel--Early works to 1800
Princeton subject headings:
Crusades.
Godfrey, of Bouillon, approximately 1060-1100.
Palestine--Description and travel.