The year-round school; the 45-15 breakthrough
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| Main Author: | |
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
[Hamden, Conn.]
Linnet Books,
1971.
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| Subjects: |
| Physical Description: | xii, 154 p. illus., ports. 23 cm. |
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| Bibliography: | Bibliography: p. [152]-154. |
| ISBN: | 0208011692 |