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| 006 | a|||||r|||| 00| 0 | ||
| 007 | ta | ||
| 008 | 220923b |||||||| |||| 00| 0 eng d | ||
| 037 | _cGeneral Book | ||
| 040 |
_aRTL _cRTL _beng |
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| 041 |
_2eng _aeng |
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| 082 | _aX:89M, J6 | ||
| 100 |
_aPresgrave Ralph _9338442 |
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| 245 | 0 | _aDynamics of time study | |
| 250 | _a3rd | ||
| 260 |
_aToronto _bRyerson Press _c1956 |
||
| 300 |
_axvii, 238p. _ccm. |
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| 650 |
_aWork Study _9234105 |
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| 942 |
_hX:89M, J6 _cGB _2CC |
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_c656006 _d656006 |
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