TY  - BOOK
AU  - E. H. Jolly
TI  - Introduction to Telephony & Telegraphy ( DEPARTMENTAL )
SN  - 8185614369
U1  - 105.23 
PY  - 1992///
CY  - Allahabad
PB  - Wheeler Pub.
KW  - ECE Departmental
ER  -