TY  - BOOK
AU  - Forouzan Behrouz A
AU  -  Fegan Sophia Chung
TI  - Datacommunications and networking
U1  - D6,8(B),4, P7 
PY  - 2007///
CY  - New Delhi
PB  - Tata McGraw-Hill     
KW  - I I C
ER  -