Mexican Migration to the United States: Policy and Trends
http://www.fas.org/sgp/crs/row/R42560.pdf
This report reviews the history of immigration policy and migration flows between the countries and the demographics of Mexicans within the U.S. It also analyzes contemporary issues in U.S. immigration policy and the impact Mexico may have on U.S. immigration outcomes. From the Congressional Research Service, posted by the Federation of American Scientists