Belman, D., Drago, R., & Wooden, M. (1990). Workgroups, efficiency wages, and work effort. National Institute of Labour Studies.
Citazione stile Chigago Style (17a edizione)Belman, Dale, Robert Drago, e Mark Wooden. Workgroups, Efficiency Wages, and Work Effort. Bedford Park, S. Aust.: National Institute of Labour Studies, 1990.
Citatione MLA (8a ed.)Belman, Dale, et al. Workgroups, Efficiency Wages, and Work Effort. National Institute of Labour Studies, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.