APA-čujuhus (7. p.)

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

Chicago-čujuhus (17. p.)

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

MLA-čujuhus (9. p.)

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

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