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100 0 _aWEIR, C.J.
245 1 0 _aUnderstanding and developing language tests.
260 _aHertfordshire :
_bPrentice Hall,
_c1993.
300 _axii,203p.
504 _aIncludes bibliographical references.
650 0 _aLanguage and languages.
908 _a070719
999 _c6579
_d6579