| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Church State and Freedom | 978-0-379-20729-3 (0-379-20729-X) | 1990 |
| Church, State, and Freedom | 978-0-379-20734-7 (0-379-20734-6) | 1989 |
| Church, State and Freedom | 978-0-379-20735-4 (0-379-20735-4) | 1985 |
L.P. · L. Pfeiffer · l Piper · Lee Pfeiffer · Leó Popper · Lew Paper