Dictionary of oriental philosophy /

Eitemau Tebyg

• Elsevier's dictionary of financial terms in English, German, Spanish, French, Italian, and Dutch /
  Cyhoeddwyd: (1979)
• Elsevier's dictionary of industrial chemistry in six languages: English/American, French, Spanish, Italian, Dutch and German.
  Cyhoeddwyd: (1964)
• Mathematics dictionary.- 4thed. /
  gan: James, Glenn
  Cyhoeddwyd: (1976)
• Mathematics dictionary.- 3rded./
  gan: James, Glenn
  Cyhoeddwyd: (1971)
• Plastics and rubber machinery
  gan: Horten, H. E.
  Cyhoeddwyd: (1970)