78
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Clark K. B. Alternative Public School Systems // Harvard Educational Review. Vol. 38. № 1 «Equal Educational Opportunity» (Winter 1968). P. 100–113, цитата на с. 110–111.
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Clark K. B. Alternative Public School Systems // Harvard Educational Review. Vol. 38. № 1 «Equal Educational Opportunity» (Winter 1968). P. 100–113, цитата на с. 110–111.