APA

Liz S. ت. م. م., .New Headway Pre-Intermediate :Workbook Without Key. New York:Oxford University Press,2011: .

Chicago

Liz Soars تأليف/john م.مشارك/Wheeldon,Sylvia م.مشارك, .New Headway Pre-Intermediate :Workbook Without Key. New York:Oxford University Press,2011: .

Harvard

Liz S. ت. م. م., .New Headway Pre-Intermediate :Workbook Without Key. New York:Oxford University Press,2011: .

MLA

Liz Soars تأليف/john م.مشارك/Wheeldon,Sylvia م.مشارك, .New York:Oxford University Press,2011: . .