Clay, Henry Hurrell, <br/><br/>
Clay's handbook of environmental health. 

 - 16th ed.  
 - London ;  Van Nostrand Reinhold,  1992. 
 - xxv, 718pg. :  ill. ; 
<br/><br/><label>ISBN: </label>0412394804 (alk. paper) 0442314884 (Van Nostrand Reinhold : alk. paper) 
<br/><br/><label>LC Class. No.: </label>MED RA566.23  / C6