TY  - BOOK
AU  - MACDONALD,W BRUCE, MUMFORD,ENID
TI  - XSEL'S PROGRESS: THE CONTINUING JOURNEY OF EXPERT SYSTEM
SN  - GRATIS
U1  - 890 
PY  - 1989///
CY  - CHICHESTER
PB  - JW
N1  - GRATIS
ER  -