Shea, M. (1998). The primacy effect: The ultimate guide to effective personal communications. Orion Business Books.
Chicago-referens (17:e uppl.)Shea, Michael. The Primacy Effect: The Ultimate Guide to Effective Personal Communications. London: Orion Business Books, 1998.
MLA-referens (9:e uppl.)Shea, Michael. The Primacy Effect: The Ultimate Guide to Effective Personal Communications. Orion Business Books, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.