| 008 |
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121221s1966 nju b 000 0 eng |
| 020 |
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|c(pbk.)
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| 040 |
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|aTMUE|beng|cTMUE|dTMUE|eaacr2
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| 050 |
00
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|aLB3061|b.W42
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| 082 |
00
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|a371.255|bW523
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| 100 |
1
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|aWestby-Gibson, Dorothy.
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| 245 |
10
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|aGrouping students for improved instruction./|cDorothy Westby-Gibson
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| 260 |
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|a[Englewood Cliffs, N.J.]|bPrentice-Hall|c[1966]
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| 300 |
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|a64 p.|c23 cm.
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| 490 |
0
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|aSuccessful school management series
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| 504 |
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|aBibliography: p. 59-64.
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| 650 |
0
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|aAbility grouping in education.
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