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| 041 | _aeng | ||
| 082 | _a624.1833 | ||
| 100 | _aCOOK, THOMAS D. | ||
| 245 | 0 | _aQUASI-EXPERIMENTATION: DESIGN & ANALYSIS ISSUES FOR FIELD SETTINGS | |
| 250 | _aS.E. | ||
| 260 | _aBOSTON | ||
| 260 |
_aEstados Unidos _bHOUGHTON MIFFLIN _c1979 |
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