Trappe, T., & Tullis, G. (2011). Intelligent business coursebook: Advanced business english. Pearson Education : Longman.
Style de citation Chicago (17e éd.)Trappe, Tonya, et Graham Tullis. Intelligent Business Coursebook: Advanced Business English. Harlow: Pearson Education : Longman, 2011.
Style de citation MLA (8e éd.)Trappe, Tonya, et Graham Tullis. Intelligent Business Coursebook: Advanced Business English. Pearson Education : Longman, 2011.
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