TY  - GEN
AU  - Edwards,Chris
AU  - Ward,John
AU  - Bytheway,A.
TI  - The essence of information systems
SN  - 0132847469
AV  - T58.64 EDW 
PY  - 1991///
CY  - United Kingdom
PB  - Prentice Hall
KW  - Information resources management
N1  - Includes an index; Includes bibliographical references (p. 170)
ER  -