Text ( visual ) : unmediated Reducing the curriculum : a process model / prepared by a task force of the National Association of Secondary School Principals. -- pbk.. -- Reston, Va. : The Association , c1982. -- v, 14 p. : ill. ; 23 cm. -- ISBN 088210134X ; (BA00529177) ; https://ci.nii.ac.jp/ncid/BA00529177 Author Heading(s): National Association of Secondary School Principals (U.S.). -- Classification(s): LCC : LB1628.5 ; DC19 : 373.19/0973. -- Subject Heading(s): LCSH : Education, Secondary -- United States -- Curricula ; LCSH : Curriculum change -- United States

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