TY  - BOOK
AU  - Zorkaczy,Peter
TI  - Information technology: an introduction 
SN  - 9780273032380 
PY  - 1990///
CY  - London : 
PB  - Pitman publishing, 
KW  - Computer networks.
KW  - Data transmisson systems.
KW  - Electronic mail systems.
KW  - Information technology.
KW  - Telecommunication.
N1  - Include index; Includes bibliographical references and indexes.
ER  -