by Michael Murphy
Paperback
details (United Kingdom).
(see also: Audible Audiobook · eBook (Kindle) · Audio Cassette)
details (USA).
(see also: Audible Audiobook · eBook (Kindle) · Audio Cassette)
details (Germany).
(see also: Kindle Ausgabe · Audible Hörbuch)
details (Spain - España).
(see also: Versión Kindle · Casete de audio)
ISBN: 978-0-14-019450-0
ISBN-10: 0-14-019450-9
Penguin · 1994