Ashenfelter, O., & Card, D. E. (2001). Did the elimination of mandatory retirement affect faculty retirement flows? National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Ashenfelter, Orley, und David E. Card. Did the Elimination of Mandatory Retirement Affect Faculty Retirement Flows? Cambridge, Mass: National Bureau of Economic Research, 2001.
MLA-Zitierstil (9. Ausg.)Ashenfelter, Orley, und David E. Card. Did the Elimination of Mandatory Retirement Affect Faculty Retirement Flows? National Bureau of Economic Research, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.