Art of negotiating /

Eitemau Tebyg

• The art of negotiating /
  gan: Nierenberg, Gerard I
  Cyhoeddwyd: (1981)
• Complete negotiator
  gan: Nierenberg, Gerard I
  Cyhoeddwyd: (1996)
• New art of negotiation: How to close any deal
  gan: Gerard I Nierenberg
  Cyhoeddwyd: (2012)
• The secrets of successful negotiation effective strategies to improve your negotiating skills
  gan: Nierenberg, Juliet
  Cyhoeddwyd: (2003)
• Art and science of negotiation /
  gan: Raiffa, Howard
  Cyhoeddwyd: (1982)