Cita APA (7a ed.)

Nuttall, C., & French, A. (2012). Outcomes. Advanced. Heinle cengage Learning.

Cita Chicago Style (17a ed.)

Nuttall, Carol, y Amanda French. Outcomes. Advanced. [Hampshire]: Heinle cengage Learning, 2012.

Cita MLA (9a ed.)

Nuttall, Carol, y Amanda French. Outcomes. Advanced. Heinle cengage Learning, 2012.