E.B. · E. Sanchez · Enrique Sanchez · S. B
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Derecho constitucional | 978-970-07-2733-2 | 2001 | |
| Derecho constitucional | 978-970-07-2187-3 | 2000 | |
| Derecho constitucional | Paperback | 978-970-07-1708-1 | 1999 |
| Derecho constitucional | 978-970-07-1024-2 | 1997 |