O`Brien, Terry. <br/><br/>
Twenty 20 GK : for competitive examinations /  
Terry O`Brien. 
 - /   . 
 - New Delhi :   Tata McGraw Hill Education ,   2012. 
 - Verious pagination :   ill.,fig ;   23cm .  
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<br/><br/><label>ISBN: </label> RS175.00 (pbk) 
<br/><br/><label>Subjects--Index Terms: </label>GENERAL KNOWLEDGE-GUIDE BOOK 
<br/><br/><label>Dewey Class. No.: </label>001.076  / OBR/T