M.-L. · Mark C. Layton · Mark C. Layton And Steven J. Ostermiller · Mark L.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 175 Ways to Get More Done In Less Time | 978-0-9658788-4-5 (0-9658788-4-8) | 2000 | David Cottrell |
| Management Insights | 978-0-9719424-8-6 (0-9719424-8-X) | 2003 | David Cottrell · Ken Carnes |
| The Manager's Coaching Handbook | 978-1-885228-46-8 (1-885228-46-5) | 2002 | David Cottrell |