Text ( visual ) : unmediated Leadership in successfully restructuring middle level schools / James W. Keefe ... [et al.]. -- Reston, Va. : National Association of Secondary School Principals , c1994. -- 1 v. : ill. ; 26 cm. -- (Leadership in middle level education ; v. 2). -- ISBN 0882102931 ; (BA27624102) ; https://ci.nii.ac.jp/ncid/BA27624102 Author Heading(s): Keefe, James W. ; National Association of Secondary School Principals (U.S.)

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