Universidad Pedagógica Nacional Unidad Ajusco Catálogo de la Biblioteca "Gregorio Torres Quintero"
by Morcos, Selim A., edit | Varley, Allen, edit.
by Morcos, Selim | Tongring, Nils, coaut | Halim, Youssef, coaut | El-Abbadi, Mostafa, coaut | Awad, Hassan, coaut | University of Alejandria. (Egypt).