| Verfasser | Häufigkeit |
|---|---|
| Lepsinger, Richard | 5 |
| Yukl, Gary | 5 |
| O'Reilly for Higher Education (Firm) | 2 |
| Safari, an O'Reilly Media Company | 2 |
| Adler, Ralph | 1 |
| Ancona, Deborah | 1 |
| Cummings, Jonathon | 1 |
| Hiromoto, Toshiro | 1 |
| Klein, Janice | 1 |
| Spear, Steven | 1 |
| Tombak, Mihkel | 1 |
| Van Maanen, John | 1 |
| Yukl, Gary 1940- | 1 |