Nuttall, C., & Evans, D. (2016). Outcomes. Pre-intermediate: Workbook (Segunda edición.). Hampshire: National Geographic Learning Cengage Learning.
Παραπομπή Chicago StyleNuttall, Carol, and David Evans. Outcomes. Pre-intermediate: Workbook. Segunda edición. Hampshire: National Geographic Learning Cengage Learning, 2016.
Παραπομπή MLANuttall, Carol, and David Evans. Outcomes. Pre-intermediate: Workbook. Segunda edición. Hampshire: National Geographic Learning Cengage Learning, 2016.
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