| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Four psychologies applied to education: Freudian, behavioral, humanistic, transpersonal, | 978-0-470-72586-3 | 1975 | |
| Four Psychologies Applied to Education: Freudian, Behavioral, Humanistic, Transpersonal, | 978-0-470-72588-7 | 1975 | |
| Psychedelic Horizons | 978-1-84540-041-5 | 2006 | |
| Psychoactive Sacramentals: Essays on Entheogens and Religion | 978-1-889725-02-4 | 2001 | Council on Spiritual Practices |
| Spiritual Growth with Entheogens: Psychoactive Sacramentals and Human Transformation | 978-1-59477-439-3 | 2012 | Roger Walsh |
| The Second Centering Book: More Awareness Activities for Children and Adults to Relax the Body and Mind | 978-0-13-798448-0 | 1989 | Gay Hendricks |
B. Roberts · T. B. · T. R. · T. Roberts · Thomas B. · Thomas B. Roberts Ph.D. · Thomas R. · Thomas Roberts
Council on Spiritual Practices · Imprint Academic · Prentice Hall · Wiley