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_c63216 _d63216 |
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| 005 | 20210603213151.0 | ||
| 008 | 190703s9999 xx 000 0 und d | ||
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| 100 | _aInternational Labour Office | ||
| 245 | 0 | _aIntroduction to Work Study | |
| 260 |
_aSwitzerland _bGeneva _c1977 |
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| 300 | _ap.436 | ||
| 650 | _aWork Measurements | ||
| 650 | _aTraining and Retraining Operatives | ||
| 942 | _cSW | ||