TY  - BOOK
AU  - Bernal,John Desmond
TI  - Science in history:  : Vol.2
AV  - CB151.B4 1969 Vol.2 
PY  - 1969///
CY  - London
PB  - : Watts & Company
KW  - Science and civilization
KW  - Civilization
KW  - History
N1  - Includes bibliography


ER  -