- Author: Beatriz Pérez Galán, Gunther Dietz, Juan Carlos Gimeno Martín, Pilar Monreal Requena, Manuela Cantón Delgado, Wolfgang Gabbert, Águeda Gómez, Theodor Rathgeber, Ute Schüren, Cristina Larrea Killinger, Ángel Acuña Delgado
- Language: Spanish
- Year: 2003