Commission on Behavioral and Social Sciences and Education & Committee on National Statistics and Committee on Population 
Statistics on U.S. Immigration [PDF ebook] 
An Assessment of Data Needs for Future Research

The growing importance of immigration in the United States today prompted this examination of the adequacy of U.S. immigration data. This volume summarizes data needs in four areas: immigration trends, assimilation and impacts, labor force issues, and family and social networks. It includes recommendations on additional sources for the data needed for program and research purposes, and new questions and refinements of questions within existing data sources to improve the understanding of immigration and immigrant trends.