| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Space-Time and Beyond | 978-0-553-26656-6 (0-553-26656-X) | 1983 | Fred Alan Wolfe |
| Space-Time and Beyond: Toward an Explanation of the Unexplainable | 978-0-525-47399-2 (0-525-47399-8) | 1975 | Jack Sarfatti · Fred Wolf |