Encyclopaedia of ethics and logic (v.5 : human sexuality and ethics)

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• Encyclopaedia of ethics and logic (v.1 : a history of ethics)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)
• Encyclopaedia of ethics and logic (v.3 : comparative religious ethics)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)
• Encyclopaedia of ethics and logic (v.2 : a theory of ethics)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)
• Encyclopaedia of ethics and logic (v.4 : an introduction to applied ethics)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)
• Encyclopaedia of ethics and logic (v.6 : the history of logic)
  gan: John H Piet (ed.)
  Cyhoeddwyd: (2000)