Textbooks and achievement : what we know / prepared by Stephen P. Heyneman, Joseph P. Farrell (consultant), Manuel A. Sepulveda-Stuardo (consultant).
By: Heyneman, Stephen P.
Contributor(s): Sepulveda-Stuardo, Manuel A | Farrell, Joseph P | World Bank.
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Cover title.
October 1978.
Bibliography: p. 32-34.
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