Assam science society. <br/><br/>
Nature knowing by doing  Textual Documents 
Assam science society 
 - Guwahati  Assam Science Society 
 - 58p.:  24cm. 
<br/><br/><label>Subjects--Index Terms: </label>Environmental Economics 
<br/><br/><label>Dewey Class. No.: </label>333.7