Formats
Trade Ed. Harper Audio 2006
CD ISBN 0061120723 $44.95 Fifteen CDs
DD ISBN 0061228893 $29.95
Library Ed. BBC Audiobooks America 2006
CS ISBN 0792742346 $84.95 Ten cassettes
CD ISBN 0792740696 $110.95 Twelve CDs
MP3-CD ISBN 0792742354 $49.95 Two MP3-CDs