Cotton D. David, Falvey D. David, & Kent S. Simon. (2013). Market Leader. Pre-intermediate Business English: Course Book (3rd ed.). Harlow, Longman, 2013.
Chicago-viite (17. p.)Cotton D. David, Falvey D. David, ja Kent S. Simon. Market Leader. Pre-intermediate Business English: Course Book. 3rd ed. Harlow, Longman, 2013, 2013.
MLA-viite (9. p.)Cotton D. David, et al. Market Leader. Pre-intermediate Business English: Course Book. 3rd ed. Harlow, Longman, 2013, 2013.
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