Soars, L., Devoy, J., & Soars, J. (1998). New headway english course: Upper - intermediate Workbook. New York: Oxford University Press.
Chicago-стиль цитированияSoars, Liz, Jo Devoy, và John Soars. New Headway English Course: Upper - Intermediate Workbook. New York: Oxford University Press, 1998.
MLA-цитированиеSoars, Liz, Jo Devoy, và John Soars. New Headway English Course: Upper - Intermediate Workbook. New York: Oxford University Press, 1998.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.