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*1001 $aHarris, W. J. A$0(NO-TrBIB)1047632$_80223800
*24512$aA handbook on distance education$cby W. J. A. Harris and J. D. S. Williams
*260  $aManchester$bDepartment of Adult and Higher Education, University of Manchester$c1977
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*4901 $aManchester monographs$v7
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