PSI, the Keller plan handbook: essays on a personalized system of instruction/
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
Menlo Park, Calif.:
Benjamin, W. A.,
[c1974]
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| Series: | The Benjamin PSI series
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| Subjects: |
| Physical Description: | xii, 99 p. ; 25 cm. |
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| Bibliography: | Includes bibliographical references and index. |
| ISBN: | 0805352392 |