TY  - GEN
AU  - Dyer,Frank Lewis
AU  - Martin,Thomas Commerford
TI  - Edison: his life and inventions, vol-I / II
U1  - 509 
CY  - New York
PB  - Harper
KW  - Biography
KW  - Edison, Thomas Alva, biography
KW  - Scientists, biography
N1  - In two volumes
ER  -