Hutchinson, T. (1997). American hotline: Intermediate-student book (Có Cassette). Oxford: Oxford University Press.
Chicago Style aipamenaHutchinson, Tom. American Hotline: Intermediate-student Book (Có Cassette). Oxford: Oxford University Press, 1997.
MLA aipamenaHutchinson, Tom. American Hotline: Intermediate-student Book (Có Cassette). Oxford: Oxford University Press, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.