Oliver, D. (2011). How to negotiate effectively (3rd ed.). Kogan Page.
Chicago-viite (17. p.)Oliver, David. How to Negotiate Effectively. 3rd ed. London ; Philadelphia: Kogan Page, 2011.
MLA-viite (8. p.)Oliver, David. How to Negotiate Effectively. 3rd ed. Kogan Page, 2011.
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