TY  - BOOK
AU  - Duffy,Tim
TI  - Four software tools: with WordPerfect, VP-Planner, and dBase III Plus
SN  - 0534088201
PY  - 1988///
CY  - Belmont, Ca.
PB  - Wadsworth Publishing Co.
KW  - PC DOS (Computer operating system)
KW  - MS-DOS (Computer operating system)
KW  - WordPerfect (Computer program)
KW  - stephenson,program
ER  -