P.D SHARMA. <br/><br/>
ECOLOGY AND ENVIRONMENT  Textual Documents 

 - 11. 
 - MEERUT:  RASTOGI PUBLICATIONS. 
 - 643. 
<br/><br/><label>ISBN: </label>81-7133-965-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Subjects--Index Terms: </label>Botany 
<br/><br/><label>Dewey Class. No.: </label>581.5