Formats
Trade Ed. Macmillan Audio 2010
CD ISBN 978-1-4272-1022-7 $79.99 Thirty CDs
DD ISBN 978-1-4272-1023-4 $41.99
Library Ed. AudioGO 2010
CD ISBN 978-0-7927-7298-9 $110.95 Thirty CDs
MP3-CD ISBN 978-0-7927-7417-4 $84.95 Four MP3-CDs
DD ISBN multiple sources