TY  - BOOK
AU  - Black,Uyless D.
TI  - Computer networks: protocols, standards, and interfaces 
SN  - 8120310411
U1  - 004.6 20
PY  - 1993///
CY  - Englewood Cliffs, N.J.
PB  - PTR Prentice Hall
KW  - Computer networks
N1  - Includes bibliographical references and index
ER  -