| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Limited Government | 978-0-13-537159-6 (0-13-537159-7) | 1974 |
| Pathology of Politics | 978-0-06-011367-4 (0-06-011367-7) | 1974 |
C.F. · C. Friedrich · Carl Joachim Friedrich · Carl Johan Friedrich Boettcher · J. Friedrich