TY  - BOOK
AU  - Manterfield, Richard
TI  - Telecommunications Signaling 
SN  - 0852967616
U1  - 621.3822 
PY  - 1999///
CY  - London : 
PB  - Institute of Electrical Engineers, 
KW  - Telecommunications
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-85296-761-6.pdf
ER  -