L a · Louis A. · Louis S. Acker · Louis S. Acker er
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Major and Minor Approaching and Departing Aspects | 978-0-86690-194-9 (0-86690-194-9) | 1974 | Frances Sakoian |
| The Transiting Planets | 978-0-86690-597-8 (0-86690-597-9) | 2009 | " |