Psychosynthesis: A Manual of Principles and Techniques
by Roberto Assagioli
ISBN 13: 9781852740726
Format: Paperback (224 pages) Publisher: Aquarian Press Published: 29 Mar 1990
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Psychosynthesis: A Collection of Basic Writings
ISBN 13: 9780967857008
Format: Paperback (300 pages) Publisher: Synthesis Center Inc. Published: 15 Feb 2012