1.
Origin of the Idea of Crusade : Foreword and Additional Notes by Marshall W. Baldwin
by Erdmann, Carl, Goffart, Wal...
ISBN: 9780691656335
2.
Origin of the Idea of Crusade : Foreword and Additional Notes by Marshall W. Baldwin
by Erdmann, Carl, Goffart, Wal...
ISBN: 9780691615639