World Health Organization <br/><br/>
Principles for evaluating chemical effects on the aged population 

 - World Health Organization, Geneva  1993 
 - 159 
<br/><br/><label>ISBN: </label>92 4 157144 6 
<br/><br/><label>Dewey Class. No.: </label>R641.71 W.H.O./E.H.C.