1. Introduction. p.1.-- 2. Leadership and organizational performance. p.5.-- 3. Group processes and organizational performance. p.26.-- 4. Communication, influence, and organizational performance. p.44.-- 5. The effect of measurements on management practices. p.61.-- 6. Some general trends. p.77.-- 7. Effective supervisión: an adaptive and relative process. p.89.-- 8. An integrating principle and an overview. p.97.-- 9. Some empirical tests of the newer theory. p.119.-- 10. Voluntary organizations. p.140.-- 11. The nature of highly effective groups. p.162.-- 12. The interaction-influence system. p.178.-- 13. The function of measurements. p.192.-- 14. A comparative view of organizations. p.222.-- 15. Looking to the future. p.237.