Hardcover 1999 Year Houghton Mifflin Publisher ISBN-13: 978-0-395-91211-9 ISBN-10: 0-395-91211-3 Buy on Amazon
Paperback 2008 Year Houghton Mifflin Publisher ISBN-13: 978-0-547-01438-8 ISBN-10: 0-547-01438-4 Buy on Amazon
Digital Books 2008 Year Houghton Mifflin Publisher ISBN-13: 978-0-547-52984-4 ISBN-10: 0-547-52984-8 Not Available for Purchase