TY  - GEN
AU  - Davis,  J. R.  Ainsworth (ed.)
TI  - Encyclopedia of scientific developments inventions and discoveries 
SN  - 8186505156
U1  - 503 
PY  - 1996///
CY  - New Delhi
PB  - Bhavan books & prints
KW  - Science-Encyclopaedias
N1  - HB
ER  -