TY  - BOOK
AU  - Duck, Michael
AU  - Read,Richard
TI  - Data communications and computer networks: for computer scientists and engineers 
SN  - 0130930474
PY  - 2003///
CY  - Harlow, England
PB  - Pearson
KW  - Data transmission systems
KW  - Computer networks
N1  - Includes glossary and index; Includes bibliographical references (p. 399-400)
ER  -