TY  - BOOK
AU  - Davis, J. R. Ainsworth .
TI  - Encyclopaedia of scientific developments inventions & discoveries
SN  - 8186505156
U1  - 509.03 
PY  - 1996///
CY  - New Delhi : 
PB  - Bhavana books & prints,
KW  - Encyclopaedia
ER  -