TY  - BOOK
AU  - Dave Francis
TI  - Effective problem solving: a structured approach 
SN  - 0415053579
AV  - HD30.29 .F715 1990
U1  - 153.4/3 20
PY  - 1990///
CY  - London
PB  - Routledge
KW  - Problem solving
N1  - Includes bibliographical references (p. 127-128)
ER  -