APA (7. basım) Alıntı

Bell, L. A., & Freeman, R. B. (2000). The incentive for working hard: Explaining hours worked differences in the U.S. and Germany. National Bureau of Economic Research.

Chicago Style (17. basım) Atıf

Bell, Linda A., ve Richard B. Freeman. The Incentive for Working Hard: Explaining Hours Worked Differences in the U.S. and Germany. Cambridge: National Bureau of Economic Research, 2000.

MLA (9th ed.) Atıf

Bell, Linda A., ve Richard B. Freeman. The Incentive for Working Hard: Explaining Hours Worked Differences in the U.S. and Germany. National Bureau of Economic Research, 2000.