| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1981 | 978-0-9507947-0-9 | Graham Douglas | Physics, Astrology and Semiotics |
| 1986 | 978-0-9507947-1-6 | Graham Douglas | Perfect Gas and the Idols of the Market Place |
| 1995 | 978-0-9507947-2-3 | '' | Planets in Semantic Space |