HISRICH, R. D. (1990). Barron's business library: Marketing. Barron's Educational Series.
Chicago-referens (17:e uppl.)HISRICH, Robert D. Barron's Business Library: Marketing. New York: Barron's Educational Series, 1990.
MLA-referens (9:e uppl.)HISRICH, Robert D. Barron's Business Library: Marketing. Barron's Educational Series, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.