TY  - BOOK
AU  - Black,Uyless D.
TI  - Computer networks: protocols, standards and interfaces 
SN  - 0130908614
U1  - 004.6 22
PY  - 1993///
CY  - Englewood Cliffs
PB  - Prentice Hall
KW  - Computer networks
N1  - Includes bibliographical references and index
ER  -