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| 007 | ta | ||
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| 037 | _cGeneral Book | ||
| 040 |
_aRTL _cRTL _beng |
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| 041 |
_2eng _aeng |
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| 082 | _aY:SN12, J2 | ||
| 100 | _aLewin Kurt | ||
| 245 | 0 |
_aField theory in social science _b Selected theoretic |
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| 260 | _c1952 | ||
| 650 |
_aScinentific method _9238255 |
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| 942 |
_hY:SN12, J2 _cGB _2CC |
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