Awasthi, D.D. <br/><br/>
A Monograph of the Lichen genus dirinaria  D.D. Awasthi. 

 - Leutershausen  1975 
 - Various Pagination., ill. 22cm 
 - (Bibliotheca licheno logica no.2). .
<br/><br/><label>Dewey Class. No.: </label>016.5891,  / A94M