Tomasi, L. F. (1988). Employer sanctions and legalization: Foreign agricultural workers and farm labor, unfinished business and new directions in immigration legislation, Central American refugees and undocumented Mexicans, migration as a factor in U.S.--Mexico relations, new legislation and migrant health factors. New York: Center for Migration Studies.

Tomasi, Lydio F. Employer Sanctions and Legalization: Foreign Agricultural Workers and Farm Labor, Unfinished Business and New Directions in Immigration Legislation, Central American Refugees and Undocumented Mexicans, Migration As a Factor in U.S.--Mexico Relations, New Legislation and Migrant Health Factors. New York: Center for Migration Studies, 1988.

Tomasi, Lydio F. Employer Sanctions and Legalization: Foreign Agricultural Workers and Farm Labor, Unfinished Business and New Directions in Immigration Legislation, Central American Refugees and Undocumented Mexicans, Migration As a Factor in U.S.--Mexico Relations, New Legislation and Migrant Health Factors. New York: Center for Migration Studies, 1988.