| 000 | 00706nam a2200217Ia 4500 | ||
|---|---|---|---|
| 008 | 180116s9999 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a92 4 154496 1 | ||
| 082 |
_aWA450 _bWHO |
||
| 100 | _a World Health Organization | ||
| 245 |
_aDetermination of airborne fibre number concentrations : _ba recommended method ,by phase contrast optical microscopy (membrane filter method) |
||
| 250 | _a | ||
| 260 |
_aGeneva _bW H O _c1997 |
||
| 300 |
_a53 p. _b26 cm. |
||
| 440 |
_a _v |
||
| 500 | _a | ||
| 520 | _a Air Polluants,Occupational, Microscopy, Environmental Monitoring | ||
| 650 | _aEnvironmental Monitoring | ||
| 650 | _aMicroscopy | ||
| 650 | _aAir Polluants,Occupational | ||
| 906 |
_a11387 _b _c |
||
| 999 |
_c26799 _d26799 |
||