APA-Zitierstil (7. Ausg.)

Breyer, F., & Hupfeld, S. (2007). On the fairness of early retirement provisions: Presented at CESifo Area Conference on Employment and Social Protection, May 2007. CESifo.

Chicago-Zitierstil (17. Ausg.)

Breyer, Friedrich, und Stefan Hupfeld. On the Fairness of Early Retirement Provisions: Presented at CESifo Area Conference on Employment and Social Protection, May 2007. Munich: CESifo, 2007.

MLA-Zitierstil (9. Ausg.)

Breyer, Friedrich, und Stefan Hupfeld. On the Fairness of Early Retirement Provisions: Presented at CESifo Area Conference on Employment and Social Protection, May 2007. CESifo, 2007.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.