Não informado. (2005). Marketing times. Sales and Marketing Executives International.
Chicago-referens (17:e uppl.)Não informado. Marketing Times. New York: Sales and Marketing Executives International, 2005.
MLA-referens (8:e uppl.)Não informado. Marketing Times. Sales and Marketing Executives International, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.