ASSAGIOLI, Roberto, M.D The Training of the Will New York: Psychosynthesis Research Foundation, Inc., . 8vo. Wraps. 22 p. P.R.F. Issue No. 17. Somewhat darkened at spine; else very good.  Price: $15.00 Add to Cart Ask a Question See all items in Psychology See all items by Roberto ASSAGIOLI, M. D.