1 | 3.53 | 228 pages? duration | |
1998 | 3.7 | 270 pages? duration | |
2017 | 3.58 | ? pages? duration | |
-400 | 3.68 | 193 pages? duration | |
2018 | 3.33 | ? pages? duration | |
3 | ? pages? duration | ||
The 80/20 Principle The 80/20 Principle: The Secret to Achieving More with Less
| 1997 | 2.5 | ? pages? duration |
2018 | 4 | ? pages? duration |