Nuttall, C., & French, A. (2017). Advanced outcomes: Workbook (segunda edición.). National geographic Learning Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Nuttall, Carol, agus Amanda French. Advanced Outcomes: Workbook. segunda edición. Hampshire: National geographic Learning Cengage Learning, 2017.
Lua MLA (9ú heag.)Nuttall, Carol, agus Amanda French. Advanced Outcomes: Workbook. segunda edición. National geographic Learning Cengage Learning, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.