Ridley,John <br/><br/>
Occupational Health and Hygiene 

 - New Delhi  Butterworth-Heinemann  1999 
 - p.241 
<br/><br/><label>ISBN: </label>0750645571 
<br/><br/><label>Subjects--Topical Terms: </label> Occupational Diseases   Radiation  Managing ergonomics  Noise and Vibration 
<br/><br/><label>Dewey Class. No.: </label>616.9803 R50O