by Leonard Bertain Ph.D.
Paperback
details (USA).
(see also: eBook (Kindle))
details (United Kingdom).
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details (Germany).
(see also: Kindle Ausgabe)
details (Canada).
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ISBN: 978-0-9741601-0-8
ISBN-10: 0-9741601-0-5
Bertain Consulting Group, The · 2011