He is the author of Identity and Power: Puerto Rican Politics and the Challenge of Ethnicity (Temple University Press, 1998) and Puerto Rican Identity, Political Development, and Democracy in New York, 1960-1990 (Lexington Books/Rowman & Littlefield, 2017). He is also co-editor of ‘Adiós Borinquen Querida:’ The Puerto Rican Diaspora, Its History and Contributions (CELAC, 2000), and editor of Latino Immigration Policy: Context, Issues, Alternatives (NYLARNet, 2008).