| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Social Environment | 978-O-7593-1528-O (O-7593-1528-O) | 2006 |
G.M. · Germán Luis Andrade Muñoz · German Munoz - Paul S. George - Roberto Hernanadez - Michael Lenagnan
German Munoz - Paul S. George - Roberto Hernanadez - Michael Lenagnan