Hutchinson, T. (1998). New Hotline starter: Workbook. Oxford: Oxford University Press.
Chicago Style aipamenaHutchinson, Tom. New Hotline Starter: Workbook. Oxford: Oxford University Press, 1998.
MLA aipamenaHutchinson, Tom. New Hotline Starter: Workbook. Oxford: Oxford University Press, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.