The unfinished twentieth century

Eitemau Tebyg

• Twentieth Century
  gan: Colton, Joel
  Cyhoeddwyd: (1970)
• The meaning of the Twentieth Century
  gan: Booulding, Kenneth E.
  Cyhoeddwyd: (1964)
• The penguin history of twentieth century
  gan: Roberts, JM
  Cyhoeddwyd: (1999)
• International history of the twentieth century /
  gan: Best, Antonyetc
  Cyhoeddwyd: (2004)
• Twentieth century British history
  gan: King Peter