Discovery of the century

Míreanna Comhchosúla

• Discovery of the century/
  le: Sviridov,Georgi
  Foilsithe: (1974)
• Twentieth century discovery
  le: Asimov, Issac
  Foilsithe: (1969)
• Discoveries and inventions of the twentieth century /
  le: Crowther, J. G.
  Foilsithe: (1957)
• Discoveries and inventions of the twentieth century /
  le: Crowther, J. G.
  Foilsithe: (1957)
• Discoveries and inventions of the twentieth century /
  le: Crowther, J. G.
  Foilsithe: (1957)