Philosophical frameworks. Mexican migration and U.S. policy : a guide for the perplexed / Judith Lichtenberg -- Human rights and the rights of aliens / James W. Nickel -- Historical precedents. The importation of Mexican contract laborers to the United States, 1942-1964 : antecedents, operation, and legacy / Manuel García y Griego -- Guestworker employment in selected European countries-- lessons for the United States? / W.R. Böhning -- Current situation. Agricultural development and rural employment : a Mexican dilemma / August Schumacher -- The rural exodus in Mexico and Mexican migration to the United States / Lourdes Arizpe -- Conflicting solutions. Immigration problems, limited-visa programs, and other options / Edwin P. Reubens -- Foreign labor programs as an alternative to illegal immigration : a dissenting view / Vernon M. Briggs, Jr