Ray, Ransingh Nirmalendu <br/><br/>
National Children's Science congress-2007, Orissa    Projects of 15th State Level 
by Ransingh Nirmalendu Ray 
 - Bhubaneswar  Bharat Jan gyan Vigyan Samity  2007 
 - 270 p.  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science Congress; Gratis
<br/><br/><label>Dewey Class. No.: </label>500   / BIS/P