Bowen, P., & Delaney, D. (2011). Champions: Student's book y workbook, level 2. Oxford University Press.
Chicago Style (17. basım) AtıfBowen, Philippa, ve Denis Delaney. Champions: Student's Book Y Workbook, Level 2. Oxford: Oxford University Press, 2011.
MLA (9th ed.) AtıfBowen, Philippa, ve Denis Delaney. Champions: Student's Book Y Workbook, Level 2. Oxford University Press, 2011.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..