Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.