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070726u1978 gw p ger d |
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|a Educational technology
|n 18.1978,5
|p American education : pressing proposals for reformation
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| 264 |
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|a Englewood Cliffs :
|b Educational Technology Publ.,
|c 1978
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| 300 |
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|a 54 S.
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| 830 |
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|a Educational technology
|w z0000032
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|a Educational technology : the magazine for managers of change in education
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