The 80/20 principle : The secret to success by achieving more wit the secret of achieving more with less /
Eighty-twenty principle
Richard Koch.
- 1st Currency paperback ed.
- New York : Currency, c1999.
- x, 277 p. ; 21 cm.
0385491743 9780385491747
97037959
Time management. Labor productivity--Psychological aspects. Industrial efficiency--Psychological aspects. Conduct of life.