O'Brien, Derek <br/><br/>
Bournvita book of knowledge volumes 4-6 
Derek O'brien 
 - New Delhi  Penguin Books India Pvt. Ltd  2007 
 - 382 p. : ill. 
<br/><br/><label>ISBN: </label>9780143330240 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Questions and answers
<br/><br/><label>Dewey Class. No.: </label>031 OBR