VitalSmarts

year of pub­li­ca­ti­onISBNauthor(s)title
2001978-0-9711967-3-5Joseph Greeny · Kerry Patterson · Ron McMillan · Al SwitzlerCrucial Conversations Audio Mastery Course
  ''978-0-9711967-4-2Joseph Grenny · Kerry Patterson · Ron McMillan · Al SwitzlerCrucial Conversations Audio Mastery Course
2004978-0-9711967-7-3Joseph Grenny · Kerry Patterson · Ron McMillan · Al SwitzlerAudio Mastery Course: Crucial Conversations (Crucial Conversations)