Παραπομπή APA

Hughes, J. (2004). Business focus: Pre-Intermediate (Teacher's book). Oxford: Oxford university press.

Παραπομπή Chicago Style

Hughes, John. Business Focus: Pre-Intermediate (Teacher's Book). Oxford: Oxford university press, 2004.

Παραπομπή MLA

Hughes, John. Business Focus: Pre-Intermediate (Teacher's Book). Oxford: Oxford university press, 2004.

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