Astrodata · Barron's Educational Series
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Die Feinanalyse des Horoskops | 978-3-907029-21-3 (3-907029-21-6) | 1992 | Charles Harvey | |
| Purchasing | 978-0-7641-1405-2 (0-7641-1405-0) | 2001 | Mary Lu Harding | |
| Purchasing | 978-0-8120-4552-9 (0-8120-4552-1) | 1991 | " |