APA (7th ed.) Zitazioa

Burke, K., & Brooks, J. (1999). Wavelength: Elementary coursebook. Pearson Education.

Chicago Style (17th ed.) Zitazioa

Burke, Kathy, eta Julia Brooks. Wavelength: Elementary Coursebook. Essex: Pearson Education, 1999.

MLA (9th ed.) Zitazioa

Burke, Kathy, eta Julia Brooks. Wavelength: Elementary Coursebook. Pearson Education, 1999.