TY  - BOOK
AU  - Black,W.J.
TI  - Intelligent knowledge based systems: an introduction 
SN  - 0442317727 (pbk.)
PY  - 1986///
CY  - Wokingham, Berkshire, England
PB  - Van Nostrand Reinhold (UK)
KW  - Artificial intelligence
KW  - Expert systems (Computer science)
N1  - Includes index; Includes bibliographical references : p. 146-156
ER  -