G. C. · Gabriel Calvo Lopez-Guerrero · Gabriele Caliebe · GABRIELE CALVI · Gabriele Cleve
Anaya Touring Club · Intl Marriage Encounter · Nelles Verlag GmbH
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Berlin | 978-84-9935-093-6 (84-9935-093-3) | 2011 | Sabine Tzschaschel | |
| Face to Face: Becoming a Happier Married Couple | 978-0-936098-57-9 (0-936098-57-0) | 1988 | ||
| Spain. Pyrenees, Atlantic Coast, Central Spain | 978-3-88618-400-2 (3-88618-400-5) | 1998 | Maria Reyes Agudo · Borja Folch · Jose Ramon Monleon · Jose Manuel Riancho · Sabine Tzschaschel · Alfredo Marques Correa | |