TY  - BOOK
AU  - Mader,Chris
AU  - Hagin,Robert
TI  - Information systems: technology, economics, applications 
SN  - 057418550X
AV  - QA76 .M234 1974
U1  - 001.64044 
PY  - 1974///
CY  - Chicago
PB  - Science Research Associates
KW  - Electronic data processing
KW  - Electronic digital computers
ER  -