(hardback cover) 
(hardback) 
(school edition) 
(Troll edition) 
(book fair edition) 
(book fair edition) 
(book fair edition) 
(original) 
(book club edition) 
(reissue cover) 
(book fair edition) 
(hardback) 
(hardback) 
(hardback) 
(hardback) 
