1. Contingencies of Reinforcement;Skinner's,1969
2. Some Issues Concerning the Control of Human Behavior;Rogers;Science,1965
3. Pigeons, Persons, and Piece Rates;Whyte's;Psychology Today,1972
4. Reinforcement Theory and Contingency Management;Clay Hamner's,1974
5. Worker Motivation Programs: Importance of Climate Structure and Performance Consequences;Clay Hamner's,1974