TI  - THOMAS ALVA EDISON
T2  - WORLD GREAT SCIENTISTS
SN  - 8178260069
U1  - 925/EDI 
PY  - 2004///
CY  - DELHI
PB  - ROHAN BOOK COMPANY
KW  - SCIENTISTS
KW  - GRAMOPHONE
KW  - PHONOGRAPH
KW  - ELECTIC BULB
KW  - TELEGRAPH
N1  - NO AUTHOR GIVEN
ER  -