TY  - BOOK
AU  - Bright Arthur A
TI  - Electric-Iamp industry:  technological change and e   
U1  - X9 (D66), H9;1 
PY  - 1949///
CY  - NewYork
PB  - Macmillan Co.         
KW  - Electrical
N1  - Massachusetts Institute of Technology Studies of Innovation
ER  -