| 000 | 00406nam a2200145Ia 4500 | ||
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| 008 | 190516s9999 xx 000 0 und d | ||
| 100 |
_aInternational Labour Office _9118969 |
||
| 245 | 0 | _aIntroduction to Work Study | |
| 260 |
_bGeneva _c1957 _aSwitzerland |
||
| 300 | _a436 | ||
| 600 |
_tIndustrial Relations _9471 |
||
| 650 |
_aIndustrial Relations _9471 |
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| 942 | _cREF | ||
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_c109658 _d109658 |
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