Spilsbury, S. (1998). Guide to advertising and sales promotion lawSallie Spilsbury. Cavendish.
Lua i Stíl Chicago (17ú heag.)Spilsbury, Sallie. Guide to Advertising and Sales Promotion LawSallie Spilsbury. Cavendish, 1998.
Lua MLA (8ú heag.)Spilsbury, Sallie. Guide to Advertising and Sales Promotion LawSallie Spilsbury. Cavendish, 1998.
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