Clerc,M.J. <br/><br/>
Introduction to working conditions and environment. 

 - ed. 
 - Geneva :  International labour,  1985. 
 - 323  p. ;    cm. 
<br/><br/>appendices. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>labour.