Deka,Praphulla Kr. <br/><br/>
Vigyan avidhan (pratham khanda) / 
Deka,Praphulla Kr. 
 - 1st ed. 
 - Guwahati:  assam Science Society,  1992. 
 - xv,466p;25cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>8176659980561 
<br/><br/><label>Dewey Class. No.: </label>503 DEK