Nuttall, C., & Evans, D. (2016). Pre-intermediate outcomes: Workbook (second edition.). National Geographic Learning Cengage Learning.
Chicago Style (17. basım) AtıfNuttall, Carol, ve David Evans. Pre-intermediate Outcomes: Workbook. second edition. Hampshire: National Geographic Learning Cengage Learning, 2016.
MLA (9th ed.) AtıfNuttall, Carol, ve David Evans. Pre-intermediate Outcomes: Workbook. second edition. National Geographic Learning Cengage Learning, 2016.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..