Donohue, J. J., & Levitt, S. D. (2003). Further evidence that legalized abortion lowered crime: A reply to Joyce. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Donohue, John J., und Steven D. Levitt. Further Evidence That Legalized Abortion Lowered Crime: A Reply to Joyce. Cambridge, Mass: National Bureau of Economic Research, 2003.
MLA-Zitierstil (9. Ausg.)Donohue, John J., und Steven D. Levitt. Further Evidence That Legalized Abortion Lowered Crime: A Reply to Joyce. National Bureau of Economic Research, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.