Determination of airborne fibre number concentrations : numbers concetrations 

 - Geneva :  World Health Organization,  1997. 
 - viii, 53pg. :  ill. ; 
<br/><br/><label>ISBN: </label>9241544961 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial hygiene.
<br/><br/><label>LC Class. No.: </label>MED RA576  / W67