H. Ellenberg et al. <br/><br/>
Biological Monitoring  Signal from the Enviroment 

 - Germany  GTZ  1991 
 - 303,Ill 
<br/><br/><label>ISBN: </label>3-528-02302-3 
<br/><br/><label>LC Class. No.: </label>RA 12B5.E5 1991