Twentieth Century Prose/

Geahča maid

• Longman companion to twentieth century literature/
  Dahkki: Ward, A.C
  Almmustuhtton: (1981)
• Twentieth-Century English Literature : 1901-1960 /
  Dahkki: Ward, A. C.
  Almmustuhtton: (1966)
• Twentieth century Russia/
  Dahkki: Treadgold, Donald W.
  Almmustuhtton: (1976)
• Twentieth century physics /
  Almmustuhtton: (1995)
• The twentieth century encyclopedia/
  Almmustuhtton: (1994)