TY  - BOOK
AU  - Duffy,Tim
AU  - Berchelmann,Traci
TI  - Computing concepts
SN  - 0534219128
U1  - 004 DUF 1994 
PY  - 1994///
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Electronic data processing
N1  - Includes index
ER  -