Biographical dictionary of twentieth century philosophers /

Eitemau Tebyg

• The Fontana biographical companion to modern thought
  gan: Bullock, Allan; Ed, et al.
  Cyhoeddwyd: (1983)
• Biographical dictionary
  Cyhoeddwyd: (1996)
• One hundred twentieth century philosophers
  gan: Brown, Stuart; Editor, et al.
  Cyhoeddwyd: (1998)
• One hundred twentieth-century philosophers /
  Cyhoeddwyd: (1998)
• The Cambridge biographical dictionary
  gan: Crystal, David; Editor
  Cyhoeddwyd: (1996)