Spilsbury, S. (1998). Guide to advertising and sales promotion lawSallie Spilsbury. Cavendish.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpilsbury, Sallie. Guide to Advertising and Sales Promotion LawSallie Spilsbury. Cavendish, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpilsbury, Sallie. Guide to Advertising and Sales Promotion LawSallie Spilsbury. Cavendish, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.