Cita APA (7a ed.)

Nuttall, C., & Evans, D. (2016). Pre-intermediate outcomes: Workbook (second edition.). National Geographic Learning Cengage Learning.

Cita Chicago Style (17a ed.)

Nuttall, Carol, y David Evans. Pre-intermediate Outcomes: Workbook. second edition. Hampshire: National Geographic Learning Cengage Learning, 2016.

Cita MLA (9a ed.)

Nuttall, Carol, y David Evans. Pre-intermediate Outcomes: Workbook. second edition. National Geographic Learning Cengage Learning, 2016.