Card, D. E., & Lewis, E. (2005). The diffusion of Mexican immigrants during the 1990s: Explanations and impacts. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Card, David E., und Ethan Lewis. The Diffusion of Mexican Immigrants During the 1990s: Explanations and Impacts. Cambridge, Mass: National Bureau of Economic Research, 2005.
MLA-Zitierstil (9. Ausg.)Card, David E., und Ethan Lewis. The Diffusion of Mexican Immigrants During the 1990s: Explanations and Impacts. National Bureau of Economic Research, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.