| 000 | 00498nam a22002057a 4500 | ||
|---|---|---|---|
| 015 | _a4127 | ||
| 020 | _a9221013669 | ||
| 041 | _a1 | ||
| 080 |
_a551.588 _bINT |
||
| 100 | _aInternational labour Office | ||
| 245 | _aWorking environment | ||
| 250 | _aFirst | ||
| 260 |
_aINTERNATIONAL LABOUR OFFICE _bGENEWA _c1975 |
||
| 300 | _a39p. | ||
| 650 | _aEarth sciences & geology | ||
| 999 |
_c2464 _d2464 |
||