TY  - BOOK
AU  - J. D Bernal
TI  - Science in history 
U1  - 509 
PY  - 1969///
CY  - Middlesex
PB  - Penguin Books Limited
N1  - J. D Bernal: Science in history.  (3rd Edition.)  Middlesex.  Penguin Books Limited, 1969.--(509BER)
ER  -