Koren, Herman <br/><br/>
Handbook of environmental health and safety;vol.I  principles and practices 

 - Mumbai  Jiaco Publishing House  1999 
 - 674p.  24cm. 
<br/><br/><label>ISBN: </label>8172247680 
<br/><br/><label>Dewey Class. No.: </label>363.7  / KOR