TY  - BOOK
AU  - Barraclough,Geoffrey
TI  - The crucible of Europe: the ninth and tenth centuries in European history 
SN  - 0520031059
AV  - D123 .B37 1976b
U1  - 940.1/4 
PY  - 1976///
CY  - Berkeley
PB  - University of California Press
KW  - Middle Ages
KW  - Carolingians
KW  - Feudalism
KW  - Edad Media
KW  - Historia
KW  - Carolingiens
KW  - Féodalité
KW  - Moyen Âge
KW  - Histoire
KW  - Holy Roman Empire
KW  - Europa
KW  - Siglo X
KW  - Saint Empire romain germanique
KW  - swd
N1  - Includes index; Bibliography: p. 172-174
UR  - http://www.archive.org/details/crucibleofeurope00barr
UR  - http://www.openlibrary.org/books/OL21254668M
ER  -