Cita APA (7a ed.)

Silveira, R., Zimmer, M., & Alves, U. K. (2009). Pronunciation instruction for Brazilians: Student's book. Cambridge Scholars Publishing.

Cita Chicago Style (17a ed.)

Silveira, Rosane, Márcia Zimmer, y Ubiratã Kicköfel Alves. Pronunciation Instruction for Brazilians: Student's Book. Newcastle upon Tyne: Cambridge Scholars Publishing, 2009.

Cita MLA (9a ed.)

Silveira, Rosane, et al. Pronunciation Instruction for Brazilians: Student's Book. Cambridge Scholars Publishing, 2009.