Citazione APA

Roam, D. (2012). The back of the napkin: Solving problems and selling ideas with pictures. London: Marshall Cavendish Business.

Stile di citazione Chicago

Roam, Dan. The Back of the Napkin: Solving Problems and Selling Ideas With Pictures. London: Marshall Cavendish Business, 2012.

Citazione MLA

Roam, Dan. The Back of the Napkin: Solving Problems and Selling Ideas With Pictures. London: Marshall Cavendish Business, 2012.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.