Text ( visual ) : unmediated Explaining inequalities in school achievement : a realist analysis / Roy Nash ; edited by Hugh Lauder. -- : hbk. -- New York : Routledge , 2016. -- xvi, 265 p. : ill. ; 24 cm. -- First published 2010 by Ashgate Publishing. -- ISBN 9780754679042 ; (BB24633760) ; https://ci.nii.ac.jp/ncid/BB24633760 Author Heading(s): Nash, Roy ; Lauder, Hugh. -- Classification(s): DC23 : 306.43. -- Subject Heading(s): LCSH : Academic achievement ; LCSH : Educational equalization ; LCSH : Educational sociology