State of the world 2000: a world watch institute report on progress toward a sustainable society

Eitemau Tebyg

• State of the World 2011: a worldwatch institute report on progress toward a sustainable society
  gan: Starke, Linda; Editor
  Cyhoeddwyd: (2011)
• State of the world 2001: a worldwatch institute report on progress toward a sustainable society
  gan: Starke, Linda; Editor
  Cyhoeddwyd: (2001)
• State of the world 1998: a world watch institute report on progress toward a sustainable society
  gan: Brown, Lester R; Author
  Cyhoeddwyd: (1998)
• State of the world 2001: a world watch institute report on progress toward a sustainable society
  gan: Brown, Lester R, et al.
  Cyhoeddwyd: (2001)
• World resources 1994 - 95 : a report by the world resources institute
  gan: The World Resource ,Institute
  Cyhoeddwyd: (1994)