Sarmah, Nanigopal . <br/><br/>
Environmental Science: A Students` Handbook /  Textual Documents 
Nanigopal Sarmah & Dr. Ramen Talukdar. 
 - Ist ed / 
 - Guwahati :  EBH Publishers ,  2006. 
 - 201pg ;  19cm. 
<br/><br/><label>Subjects--Index Terms: </label>Environmental science G- Botany 
<br/><br/><label>Dewey Class. No.: </label>577  / Sa 74 En