The Ultimate Quiz Challengede Derek O'BrienEdiciones (1)The Ultimate Quiz Challenge (2005)Penguin Books · ISBN 9780144000531Más obras de Derek O'BrienTThe Penguin-CNBC-TV18 business yearbook 2006-07The Penguin-CNBC-TV18 business yearbook 2006-07Penguin Yearbook 2009Derek's Picks