TY  - BOOK
AU  - Friederich, Sylvia
AU  - Gargano, Michael
TI  - Expert systems design and development using VP-expert
SN  - 9780471615811
U1  - 006.33 
PY  - 1989///
CY  - New York
PB  - John Wiley 
KW  - Computer science
ER  -