Dan Roam. (2009). The Back of the Napkin: Solving Problems and Selling Ideas with Pictures. Marshall Cavendish Business.
Chicago ZitierstilDan Roam. The Back of the Napkin: Solving Problems and Selling Ideas with Pictures. Marshall Cavendish Business, 2009.
MLA ZitierstilDan Roam. The Back of the Napkin: Solving Problems and Selling Ideas with Pictures. Marshall Cavendish Business, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.