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102   $aGB
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200 1 $aSociolinguistics and second language acquisition$fDennis R. Preston
210   $aOxford ; New York$cBlackwell$d1989
215   $aXVII, 326 p.$d23 cm
225 1 $aLanguage in society$v14
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700  1$aPreston,$bDennis R.$0127881
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