Hale, Mason E., <br/><br/>
How to know the lichens. 

 - 226 páginas 
 - Pictured key nature series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Liquenes--Identificacion--America del Norte
<br/><br/><label>LC Class. No.: </label>QK587  / H35