King, G. Secrets of Selling: How to win in any sales situation (2.). Pearson Education UK.
Style de citation Chicago (17e éd.)King, Geoff. Secrets of Selling: How to Win in Any Sales Situation. 2. Pearson Education UK.
Style de citation MLA (8e éd.)King, Geoff. Secrets of Selling: How to Win in Any Sales Situation. 2. Pearson Education UK.
Attention : ces citations peuvent ne pas être correctes à 100%.