TY  - BOOK
ED  - Mitchell Beazley encyclopedias Limited.
TI  - Joy of knowledge: The comprehensive home reference library
SN  - 0855331097  
AV  - Q162 .S 3973 1977
U1  - 909 
PY  - 1977///
CY  - London
PB  - Mitchell Beazley Publishers
KW  - Civilization
KW  - History
N1  - Includes index
ER  -