Duggan, M. G., & Imberman, S. A. (2009). Why are the disability rolls skyrocketing? The contribution of population characteristics, economic conditions, and program generosity. University of Chicago Press.
Chicago-Zitierstil (17. Ausg.)Duggan, Mark G., und Scott A. Imberman. Why Are the Disability Rolls Skyrocketing? The Contribution of Population Characteristics, Economic Conditions, and Program Generosity. University of Chicago Press, 2009.
MLA-Zitierstil (9. Ausg.)Duggan, Mark G., und Scott A. Imberman. Why Are the Disability Rolls Skyrocketing? The Contribution of Population Characteristics, Economic Conditions, and Program Generosity. University of Chicago Press, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.