APA (7th ed.) Zitazioa

Baxter, S., Bazin, A., Radford, N., Smidowicz, V., & Woodbridge, T. (2003). Success with Cels: Preliminary, a preparation course for the certificates in english language skills (1a. ed.). Summertown.

Chicago Style (17th ed.) Zitazioa

Baxter, Steve, Anthea Bazin, Neil Radford, Vincent Smidowicz, eta Teresa Woodbridge. Success with Cels: Preliminary, a Preparation Course for the Certificates in English Language Skills. 1a. ed. Oxford: Summertown, 2003.

MLA (9th ed.) Zitazioa

Baxter, Steve, et al. Success with Cels: Preliminary, a Preparation Course for the Certificates in English Language Skills. 1a. ed. Summertown, 2003.