On the various forces of nature /

Eitemau Tebyg

• Philosophy of nature : Selections from his writings ed by H S Thayer /
  gan: Newton Isaac
  Cyhoeddwyd: (1960)
• Natural phylosophy of cause and chance /
  gan: Born Max
  Cyhoeddwyd: (1964)
• Papers and letters on nature and phylosophy and related documents ed by I Bernard cohen /
  gan: Newton, Isaac
  Cyhoeddwyd: (1958)
• The forces of nature /
  gan: Davies, P. C. W.
  Cyhoeddwyd: (1979)
• Principia : Mathematical principles of natural philosophy and his system of the world.Tr into English by Andrew Motte and re by Florian Cajori /
  gan: Newton, Isaac
  Cyhoeddwyd: (1946)