Cita APA (7a ed.)

Burke, K., & Brooks, J. (2000). Wavelength: Pre-intermediate coursebook. Pearson Education.

Cita Chicago Style (17a ed.)

Burke, Kathy, y Julia Brooks. Wavelength: Pre-intermediate Coursebook. Essex: Pearson Education, 2000.

Cita MLA (9a ed.)

Burke, Kathy, y Julia Brooks. Wavelength: Pre-intermediate Coursebook. Pearson Education, 2000.