Hartley, B., & Viney, P. (1979). Streamline English: Connections : an intensive English course for pre-intermediate students : teacher's edition. Oxford University Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hartley, Bernard, και Peter Viney. Streamline English: Connections : An Intensive English Course for Pre-intermediate Students : Teacher's Edition. Oxford: Oxford University Press, 1979.
Παραπομπή σε μορφή MLA (9th εκδ.)Hartley, Bernard, και Peter Viney. Streamline English: Connections : An Intensive English Course for Pre-intermediate Students : Teacher's Edition. Oxford University Press, 1979.
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