TY  - BOOK
AU  - Bernal, J.D.
TI  - Science in History: Volume 3 The natural sciences in our time
SN  - 978 93 81300 36 7
U1  - 508 23rd ed.
PY  - 1965///
CY  - Bhopal
PB  - Eklavya foundation
N1  - Part 6
Science in our time
ch.10- The physical sciences in the twentieth century
ch.11- The biological sciences in the twentieth century

ER  -