TY  - BOOK
AU  - Frith Margaret
TI  - Who was thomas alva edison ?
SN  - 9780448437651
U1  - 925 
PY  - 2005///
CY  - New York
PB  - Penguin Random House
KW  - Biography
KW  - Biography-Thomas Alva Edison
KW  - Biography-scientists
ER  -