Shea, M. (1998). The primacy effect: The ultimate guide to effective personal communications. Orion Business Books.
Chicago-viite (17. p.)Shea, Michael. The Primacy Effect: The Ultimate Guide to Effective Personal Communications. London: Orion Business Books, 1998.
MLA-viite (9. p.)Shea, Michael. The Primacy Effect: The Ultimate Guide to Effective Personal Communications. Orion Business Books, 1998.
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