Baxter, S., & Woodbridge, T. (2003). Success with Cels: Vantage, a preparation course for the certificates in english language skills (1a. ed.). Summertown.
Chicago-referens (17:e uppl.)Baxter, Steve, och Teresa Woodbridge. Success with Cels: Vantage, a Preparation Course for the Certificates in English Language Skills. 1a. ed. Oxford: Summertown, 2003.
MLA-referens (9:e uppl.)Baxter, Steve, och Teresa Woodbridge. Success with Cels: Vantage, a Preparation Course for the Certificates in English Language Skills. 1a. ed. Summertown, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.