TY  - BOOK
AU  - Pollard, Michael
TI  - The lightbulb and how it changed the world
SN  - 0750015152
AV  - TK 4351  .P771 1994
U1  - HS 621.3209  
PY  - 1994///
CY  - Hong Kong : 
PB  - Simon & Schuster Young Books
ER  -