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100   $a19990604d1998----km-y0itay50------ba
101 0 $aeng
102   $aUS
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200 1 $a<<An >>introduction to sociolinguistics$fRonald Wardhaugh
205   $a3. ed.
210   $aMalden (Mass.)$cBlackwell$d1998
215   $aVIII, 404 p.$d25 cm
225 1 $aBlackwell textbooks in linguistics$v4
610 0 $aSociolinguistica
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912   $a990004204210403321
952   $a408 WARD 1$bBibl.25178$fFLFBC
959   $aFLFBC
996   $aIntroduction to sociolinguistics$9210403
997   $aUNINA