El Segundo,Calif.: SOI Institute, (1979). 8vo. Yellow Wraps. xiv, 139 . + 68 p. of Exercise Sheets. Revised edition. Paperback original. Cover is very lightly soiled; else Fine. 
"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"