Cita APA

Johnson, C., & Barral, I. (2006). Intelligent business: Skills book : upper intermediate business english. London: Longman.

Citación estilo Chicago

Johnson, Christine, and Irene Barral. Intelligent Business: Skills Book : Upper Intermediate Business English. London: Longman, 2006.

Cita MLA

Johnson, Christine, and Irene Barral. Intelligent Business: Skills Book : Upper Intermediate Business English. London: Longman, 2006.

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