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A report of a five-year longitudinal study of the effects of early educational intervention in the lives of disadvantaged children in Durham, North Carolina

Robert Lytton SpauldingDurham Education Improvement Program

出版	Southern Association of Colleges and Schools, 1970
URL	http://books.google.com.hk/books?id=8UE8AAAAIAAJ&hl=&source=gbs_api