Science and technology: Textbook for class 8th 
N C E R T 
 - New Delhi, India  National Council of Educational Research and Training  2004 
 - vi,232p. 
<br/><br/><br/>Acc. No. 90071 is CSEC book 
<br/><br/><label>ISBN: </label>81-7450-261-0 
<br/><br/><label>Source: </label>Reference