Spilsbury, S. (1998). Guide to advertising and sales promotion lawSallie Spilsbury. Cavendish.
Chicago-referens (17:e uppl.)Spilsbury, Sallie. Guide to Advertising and Sales Promotion LawSallie Spilsbury. Cavendish, 1998.
MLA-referens (8:e uppl.)Spilsbury, Sallie. Guide to Advertising and Sales Promotion LawSallie Spilsbury. Cavendish, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.