TY  - BOOK
AU  - Erdmann,Carl
TI  - The origin of the idea of crusade
SN  - 0691052514 :
AV  - D157 .E713
PY  - 1977///]
CY  - [Princeton, N.J.]
PB  - Princeton University Press
KW  - Crusades
N1  - Translation of Die Entstehung des Kreuzzugsgedankens; Includes index; Bibliography: p. 373-427
ER  -