TY  - BOOK
AU  - Bernal,J.D.
TI  - Science in history in 4 volumes
PY  - 1969///-
CY  - Harmondsworth
PB  - Penguin
N1  - V. 2. Scientific and industrial revolutions;  V. 3. Natural sciences in our time;  V. 4. Social sciences : conclusions
ER  -