HASKINS JACK. (1993). SUCCESSFUL ADVERTISING RESEARCH METHODS. NTC BUSINESS BOOKS.
Chicago-referens (17:e uppl.)HASKINS JACK. SUCCESSFUL ADVERTISING RESEARCH METHODS. U S A: NTC BUSINESS BOOKS, 1993.
MLA-referens (9:e uppl.)HASKINS JACK. SUCCESSFUL ADVERTISING RESEARCH METHODS. NTC BUSINESS BOOKS, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.