Formats
Trade Ed. Macmillan Audio 2008
CD ISBN 978-1-4272-0509-2 $69.95 Twenty-eight CDs
DD ISBN multiple sources
Library Ed. BBC Audiobooks America 2008
CD ISBN 978-0-7927-5639-2 $139.95 Twenty-eight CDs
MP3-CD ISBN 9780792757559 $84.95 Three MP3-CDs
DD ISBN multiple sources