Παρόμοια τεκμήρια

• State of the world 1997 : a Worldwatch Institute report on progress towards a sustainable society /
  Έκδοση: (1997)
• State of the world 1995 : a worldwatch institute report on progress toward a sustainable society /
  Έκδοση: (1995)
• State of the world 1996 : a worldwatch institute report on progress toward a sustainable society /
  Έκδοση: (1996)
• State of the world 1990 : a worldwatch institute report on progress toward a sustainable society /
  Έκδοση: (1990)
• State of the world 1992 : a worldwatch institute report on progress toward a sustainable society /
  Έκδοση: (1992)