Cambridge Click start 3 :  Computer science for schools 

 - Karachi :  Paramount books Ltd.  2014. 
 - 114 pages :  colour illustrations :  28 cm. 
<br/><br/><label>ISBN: </label>9781107668263 
<br/><br/><label>Dewey Class. No.: </label>TR 001.642  / CAM-C