TY  - BOOK
AU  - Roam,Dan
TI  - The back of the napkin : : solving problems and selling ideas with pictures
SN  - 9781591841999
U1  - 658.403 23
PY  - 2008///
CY  - New York : 
PB  - Portfolio , 
KW  - Problem solving - Audio-visual aids
ER  -