World of wonder : Ten thousand things every child should know. /

Eitemau Tebyg

• Seven wonders of the world : Five thousand years of culture and history in the ancient world. /
  gan: Muller, Arthur
  Cyhoeddwyd: (1966)
• 100 wonders of the world Greatest treasures of mankind in five continents /
  Cyhoeddwyd: (2007)
• Child's world. /
  Cyhoeddwyd: (1962)
• Thousand wonders of the world /
  gan: Bedurftig, Friedemann
  Cyhoeddwyd: (2007)
• Emerging world. /
  Cyhoeddwyd: (1964)