Richterich, Rene
Identifying the needs of adults learning a foreign language
Pergamon Press, 1980
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Stevick, Earl W.
Teaching and learning languages
Cambridge University Press, 1982
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Approaches to teaching foreign languages
edited by M.G. Hesse
North-Holland, 1975
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Huebener, Theodore
Audio-visual techniques In teaching foreign languages: a practical handbook
New York University Press, 1967
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Richards, Jack C.
The Context of language teaching
Cambridge University Press, 1985
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