Autores

•  Mariano Aguirre (3)
•  Eduard Cantos (1)
•  Fred Halliday (1)
•  Carole Crabbé (1)
•  Mabel González (1)
•  Filippo Miraglia (1)
•  Sonia Paris Albert (1)
•  Irene Comins Mingol (1)
•  Institute Worldwatch (1)
•  Tony Martínez Piqueras (1)
•  Joaquín López Bustamante (1)