Philip Dormer Stanhope (4th earl of Chesterfield.), Charles Caleb Colton (1861). “Lord Chesterfield's advice to his son on men and manners. To which are added, selections from Colton's 'Lacon'.”, p.194
"John Green Interview: ‘Fault In Our Stars’ Author Talks Worst Book Ever, Where He Likes To Read". The Guardian interview, www.huffingtonpost.com. October 12, 2012.