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101 0 $aeng
200 00$aIssue brief : characteristics of public school teachers' professional development activities--1999-2000
210   $aWashington, D.C
517   $aIssue brief 
906   $aBOOK
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996   $aIssue brief : characteristics of public school teachers' professional development activities--1999-2000$93196409
997   $aUNINA