TY  - BOOK
AU  - Devi, B N Hema
AU  - Rao, L S Seshagiri
TI  - Thomas Alva Edison
U1  - R922.85 
PY  - 2000///
CY  - Bangalore
PB  - Sapna Book House
KW  - Biographies - Scientists
KW  - Biographies
KW  - USA
ER  -