TY  - BOOK
AU  - Bernal, John Desmond
TI  - Science in history (vol-3): the natural sciences in our time
T2  - 3
U1  - 502 
PY  - 1969///
CY  - England
PB  - Penguin Books
KW  - General Science
KW  - Scientific instruments
N1  - 025A / 15.11.1969; History of Science; Philosophy; Scientific Method
ER  -