Cita APA

Blackwell, A., Naber, T., Diaz, B. B., Magy, R., & Salas-Isnardi, F. (2010). Future english for results 4. New York (EUA): Pearson Education.

Citación estilo Chicago

Blackwell, Angela, Therese Naber, Beatriz B. Diaz, Ronna Magy, y Federico Salas-Isnardi. Future English for Results 4. New York (EUA): Pearson Education, 2010.

Cita MLA

Blackwell, Angela, et al. Future English for Results 4. New York (EUA): Pearson Education, 2010.