Mukerji K G Ed. <br/><br/>
Biology of lichens. 
Mukerji K G Ed.; Chamola B P Ed.; Upreti D K Ed. 
 - New Delhi  Aravali Books       1999 
 - 419p  cm. 
<br/><br/><label>Standard No.: </label>25451 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>I27, N9