Alli, Benjamin O. <br/><br/>
Fundamental principles of occupational health and safety / 
Benjam in O. Alli 
 - Second edition 
 - Geneva :  International Labour Office,  2008 
 - xx , 199 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p.189-191 ) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Occupational health services<br/>Industrial safety