So You Think You Are Human a brief study of human kinds

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• So you think you're human?: a brief history of humankind
  gan: Fernandez-Armesto, Felipe
  Cyhoeddwyd: (2004)
• So you think you can manage ?
  gan: Williams, Shaun
  Cyhoeddwyd: (1984)
• So you think you can sell
  gan: Mandarin Paperbacks
  Cyhoeddwyd: (1991)
• So you think you can manage
  Cyhoeddwyd: (1984)
• So you think you can cope with customers
  Cyhoeddwyd: (1989)