Encyclopedia of operations research and management science /

Eitemau Tebyg

• Encyclopedia of physical science and technology /
  Cyhoeddwyd: (1992)
• Concise encyclopedia of the sciences /
  Cyhoeddwyd: (1980)
• McGraw-Hill concise encyclopedia of science & technology /
  Cyhoeddwyd: (1998)
• McGraw-Hill encyclopedia of science and technology; an international reference work.
  Cyhoeddwyd: (1966)
• Illustrated world of science encyclopedia.
  Cyhoeddwyd: (1971)