Consumertronics · Hackett Publishing Company · Palgrave Macmillan · Regent College Publishing · Wadsworth Publishing
| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| Alien Abduction!: How to React & ACT When Contacted by Aliens | Paperback | 978-0-934274-50-0 | 1996 |
| Free Will and Determinism: A Dialogue | " | 978-0-915144-77-8 | 1980 |
| Free Will and Determinism: A Dialogue | Hardcover | 978-0-915144-78-5 | 1980 |
| Life of the Mind, The: A Christian Perspective | Paperback | 978-0-8010-2336-1 | 2002 |
| On Love and Friendship | " | 978-0-534-54267-2 | 1995 |
| Personal Virtues: Introductory Readings | " | 978-1-4039-9455-4 | 2006 |
| Singleness of Heart: Restoring the Divided Soul | " | 978-1-57383-129-1 | 1994 |