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_a658.54 _bILO |
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| 110 |
_ainternational labour officer _921134 |
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| 245 | _aIntroduction to work study/2e | ||
| 250 | _a2nd ed. | ||
| 300 | _axix, 436p. | ||
| 653 |
_aProductivity and work study _aproductivity in the individual _awork study |
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| 942 | _cBK | ||
| 260 |
_aGeneva _bInternational labour office _c1969 |
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| 999 |
_c115815 _d115815 |
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