TY  - BOOK
AU  - Pulschen, Donna M
AU  - Szymanski, Robert A
AU  - Szymanski, Donald P
TI  - Computers and information systems
SN  - 0024187674
AV  - QA 76.5 Szy 
PY  - 1995///
CY  - Upper Saddle River, NJ
PB  - FT Prentice-Hall
ER  -