TY  - BOOK
AU  - Black,Ulysses
TI  - Computer networks:  Protocols,standards, and interfaces 
SN  - 9788120310414
U1  - 004.6 
PY  - 2008///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Computer networks
KW  - Data transmission systems
N1  - Includes index
ER  -