On the track of discovery : Riddles of outer space,scientists unravel mysteries,secrets of history. /

Míreanna Comhchosúla

• On the track of discovery /
• Discovery of America /
  le: Nehru Jawaharlal
• Riddle of a changing world. /
  le: Gibbs, Philip
  Foilsithe: (1960)
• Lahoul : The mystery land in the Himalayas. /
  le: Sajni, Ramnath
  Foilsithe: (1994)
• Progress and history. /
  Foilsithe: (1920)