TY  - BOOK
AU  - Zorkoczy,Peter
TI  - Information technology: an introduction 
SN  - 0442293917 (pbk.) :
U1  - 001.5 
PY  - 1984///, 1983
CY  - New York
PB  - Van Nostrand Reinhold Co.
KW  - Data transmission systems
KW  - Telecommunication
KW  - Computer networks
KW  - Electronic mail systems
KW  - Information technology
N1  - Includes index; Bibliography: p. 131
ER  -