| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Qualität am Arbeitsplatz | 978-3-8323-0042-5 | 1993 | Rick Griggs | |
| Quality at Work: A Personal Guide to Professional Standards | 978-0-931961-72-4 | 1995 | ||
| Richtig zuhören, mehr erreichen | 978-3-8323-0466-9 | 1998 | ||
| Self-Managing Teams: Creating and Maintaining Self-Managed Work Groups | 978-1-56052-000-9 | 1990 | Robert Hicks | |
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