Hartley, B. (1983). Streamline English; T1: Departures. London: Oxford Univ. Press.
Chicago Style aipamenaHartley, Bernard. Streamline English; T1: Departures. London: Oxford Univ. Press, 1983.
MLA aipamenaHartley, Bernard. Streamline English; T1: Departures. London: Oxford Univ. Press, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.