Hawksworth, D. L. <br/><br/>
Lichens as pollution monitors / 
David L. Hawksworth, Francis Rose 
 - 59 p. :  il. ;  22 cm. 
 - Institute of Biology's studies in biology ;  no.66 .
<br/><br/>Incluye referencias bibliográficas 
<br/><br/><label>ISBN: </label>0713125543 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONTAMINACION DEL AIRE<br/>LIQUENES
<br/><br/><label>Dewey Class. No.: </label>589.1  / H37l