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| 001 | 00354902 | ||
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| 008 | 830526s1979 nyua a o0011 eng l | ||
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_a370 _b.78 |
| 090 | 0 | 0 | _b370.78/V224u/1979 |
| 100 | 1 | 0 |
_aVan Dalen, Deobold B., _d1911- |
| 245 | 1 | 0 |
_aUnderstanding educational research _ban introduction _cDeobold B. Van Dalen |
| 250 | 0 | 0 | _a4th ed. |
| 260 | 0 | 0 |
_aNew York _bMcGraw-Hill _cc1979 |
| 300 | 0 | 0 |
_axii, 547 p. _bill. _c24 cm. |
| 500 | 0 | 0 | _aIncludes indexes |
| 595 | 0 | 0 | _a0070668833 |
| 650 | 0 | 0 |
_aEducation _xResearch |
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