TY  - BOOK
AU  - Sinnema, William
AU  - Mcpherson, Robert
TI  - Electronic Communications 
SN  - 0132493438
U1  - 621.380413 
PY  - 1991///
CY  - Scarborough, Ontario : 
PB  - Prentice-Hall Canada, 
KW  - Telecommunications
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-13-249343-8.pdf
ER  -