Friedrich von Hügel · H. Friedrich
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Mystical Element of Religion: Volume II: v. 2 | 978-0-227-17262-9 (0-227-17262-0) | 2009 |
| Mystical Element of Religion: Volume I: v. 1 | 978-0-227-17261-2 (0-227-17261-2) | 2009 |
von-humboldt-alexander-humboldt-alexander-von-williams-helen-maria