| 000 | 00631nam a2200193Ia 4500 | ||
|---|---|---|---|
| 999 |
_c11574 _d11574 |
||
| 005 | 20211231122417.0 | ||
| 008 | 180712s9999 xx 000 0 und d | ||
| 020 | _a9241544961 | ||
| 082 |
_a363.7 _bWOR _223 |
||
| 100 | _aWORLD Health Organization | ||
| 245 | _a Determination of airborne fibre number concentrations : a recommended method, by phase-contrast optical microscopy (membrane filter method) / | ||
| 260 |
_aGeneva _bWHO _c1997 |
||
| 300 | _aviii, 53 p. | ||
| 500 | _aIncludes reference. | ||
| 650 | _aEnvironmental health | ||
| 650 | 0 |
_a Air pollution _9120526 |
|
| 650 | 0 |
_a Airborne fibre _9120527 |
|
| 942 | _cPR | ||