Olin:

BR270 .A76 2005                       ARNOLD        BELIEF & UNBELIEF IN MEDIEVAL EUROPE

BT1319 .L35 2002                       LAMBERT MEDIEVAL HERESY (3rd ed.)

BX1712 .H21                              HAMILTON   MEDIEVAL INQUISITION  

BX1720 .W14 1974                    WAKEFIELD  HERESY, CRUSADE & INQUISITION]*

BX4891.3 .W55 2003                 SIBLY             WILLIAM OF PUYLAURENS*

D116 .J67 2003                           JORDAN         EUROPE IN THE HIGH MIDDLE AGES

D118 .R67 2004                          ROSENWEIN SHORT HISTORY OF MIDDLE AGES

D160 .S56                                   SIBERRY        CRITICISM OF CRUSADING

D172 .T53 1940                          THROOP         CRITICISM OF THE CRUSADE

DC83.3 .O44 1961                      OLDENBURG MASSACRE AT MONTSEGUR

DC83.3 .S93x 1999                     SUMPTION     ALBIGENSIAN CRUSADE  

HN380.P6 M82                           MOORE   THE FORMATION OF A PERSECUTING SOCIETY

PC3308 .P33x 1993                     PATERSON     WORLD OF THE TROUBADORS

PC3330.F65 S38X 2001             SCHULMAN   WHERE TROUBADOURS WERE BISHOPS
              
BX4890 .P3813x 1998                SIBLY/SIBLY    HISTORY OF ALBIGENSIAN CRUSADE

                                                    SHIRLEY        SONG OF THE CATHAR WARS (Ordered Jan, no call number yet?)

Uris:

BT1315.2 .W32x 1991               WAKEFIELD/EVANS HERESIES OF THE HIGH MIDDLE AGES