TY  - BOOK
AU  - Duncan,Kevin
TI  - The diagrams book: 50 ways to solve any problem visually 
SN  - 9781907794292
AV  - HD30.29 .D86 2013
U1  - 658 19
PY  - 2013///
CY  - London
PB  - LID Pub.
KW  - Problem solving
KW  - Visual communication
N1  - Includes bibliographical references (page 122)
ER  -