by Martin Seligman
Paperback
details (USA).
(see also: Audible Audiobook · eBook (Kindle))
details (UK).
(see also: Audible Audiobook · eBook (Kindle))
details (Germany).
(see also: Kindle Ausgabe · Kindle Ausgabe)
details (Canada).
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ISBN: 978-0-671-01911-2
ISBN-10: 0-671-01911-2
Free Press · 1998