Martin, A M <br/><br/>
The acoustic attenuation characteristics of 26 hearing protectors evaluated following the British standard procedure.  [electronic resource] 

 -  The Annals of occupational hygiene  Dec 1977 
 - 229-46 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0003-4878 
<br/><br/><label>Standard No.: </label>10.1093/annhyg/20.3.229  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ear Protective Devices--standards<br/>Humans<br/>Protective Devices--standards<br/>United Kingdom