El Segundo,Calif.: SOI Institute, (1979). 8vo. Blue Wraps. xiii, 152 p. + 70 p. of Exercise Sheets. Revised edition. Paperback original. Cover is very lightly worn& soiled, name on front cover; else Very Good. 
"These Sourcebooks have come about in response to requests from educators who have wanted specific materials based on the rationale expressed in The Structure of Intellect: Its Interpretation and Uses"