Encyclopaedia of ethics and logic (v.10 : logic and mathematics)

Eitemau Tebyg

• Encyclopaedia of ethics and logic (v.6 : the history of logic)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)
• Encyclopaedia of ethics and logic (v.7 : formal logic)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)
• Encyclopaedia of ethics and logic (v.8 : the science of logic)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)
• Encyclopaedia of ethics and logic (v.9 : the language and grammar of logic)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)
• Encyclopaedia of ethics and logic (v.1 : a history of ethics)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)