TY  - BOOK
AU  - Bigelow, Stephen J,  Carr, Joseph.J, Winder, Steve
TI  - Understanding telephone electronics
SN  - 0-7506-7175-0
U1  - 621.385 BIG 
PY  - 2001///
CY  - NEW DELHI
PB  - NEWNESS
KW  - TELEPHONE, TELEPHONE ELECTRONICS
ER  -