A classification of educational subject matter /
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| Corporate Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Series: | DHEW publication ;
no. (NCES) 78-112. State educational records and report series ; handbook 11. |
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| Physical Description: | vi, 223 pages ; 29 cm. |
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| Bibliography: | Bibliography: page 187. |