Editions of Key of Knowledge

mp3 cd

English language

Published June 10, 2004 by Brilliance Audio on MP3-CD Lib Ed.

Hardcover

English language

Published Dec. 30, 2003 by Jove Books.

preloaded digital audio player

Published Sept. 1, 2015 by Brilliance Audio Lib Edn.

mp3 cd

Published Sept. 1, 2015 by Brilliance Audio.

English language

Published Dec. 30, 2016 by Little, Brown Book Group Limited.

352 pages

English language

Published Dec. 30, 2010 by Little, Brown Book Group Limited.

341 pages

Chinese language

Published Dec. 30, 2004 by Lin bai chu ban she you xian gong si.

English language

Published Dec. 30, 2004 by Little, Brown Book Group Limited.