Earth in the balance /

Eitemau Tebyg

• Earth in the balance : forging a new common purpose
  gan: Gore, Albert
  Cyhoeddwyd: (1992)
• Earth in the balance: forging a new common purpose
  gan: Gore, Al
  Cyhoeddwyd: (2007)
• Earth in the balance: ecology and the human spirit
  gan: Gore, Albert
• Promising the earth
  gan: Lamb, Robert
  Cyhoeddwyd: (1996)
• Asking the earth : the spread of unsustainable development /
  gan: Pereira, Winin
  Cyhoeddwyd: (1990)