Wolff, J. Focus: Use the power of targeted thinking to get more done : Use the power of targeted thinking to get more done (2.). Pearson Education UK.
Style de citation Chicago (17e éd.)Wolff, Jurgen. Focus: Use the Power of Targeted Thinking to Get More Done : Use the Power of Targeted Thinking to Get More Done. 2. Pearson Education UK.
Style de citation MLA (8e éd.)Wolff, Jurgen. Focus: Use the Power of Targeted Thinking to Get More Done : Use the Power of Targeted Thinking to Get More Done. 2. Pearson Education UK.
Attention : ces citations peuvent ne pas être correctes à 100%.