1.

図書
図書
1. The Gallup/Phi Delta Kappa polls of attitudes toward the public schools, 1969-88 : a 20-year compilation and educational history
edited by Stanley Elam ; historical summaries by Ben Brodinsky
出版情報: Bloomington, Ind. : Phi Delta Kappa, c1989
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2.

図書
図書
2. Gallup polls of attitudes toward education 1969-1984 : a topical summary
Stanley M. Elam, editor
出版情報: Bloomington, Ind. : Phi Delta Kappa, c1984
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