Immigration and multiculturalism : essential primary sources / K. Lee Lerner, Brenda Wilmoth Lerner, and Adrienne Wilmoth Lerner, editors. Detroit, Mich. : Thomson Gale, c2006.
American attitudes : what Americans think about the issues that shape their lives, 4th ed. / by the editors of New Strategist Publications. Ithaca, N.Y. : New Strategist Publications, c2005.
Racial and ethnic diversity : Asians, Blacks, Hispanics, Native Americans, and whites / the New strategist editors. 5th ed. Ithaca, N.Y. : New Strategist Publications, c2006.
Gale encyclopedia of multicultural America, 2nd ed. / contributing editor, Robert von Dassanowsky ; author of introduction, Rudolph J. Vecoli ; edited by Jeffrey Lehman. Detroit : Gale Group, c2000.
Encyclopedia of food and culture / Solomon H. Katz, editor in chief ; William Woys Weaver, associate editor. New York : Scribner, c2003.
Race relations in the United States, 1920-1940 / Leslie V. Tischauser. Westport, Conn. : Greenwood Press, 2008.
Race relations in the United States, 1940-1960 / Thomas J. Davis. Westport, Conn. : Greenwood Press, 2008.
Race relations in the United States, 1980-2000 / Timothy Messer-Kruse. Westport, Conn. : Greenwood Press, 2008.
To find books in the libraries about immigration and related issues, you might want to try using a Subject search in the Library Catalog (rather than a less precise Words Anywhere (Keyword) search.) Using subjects such as these below will help save you time and effort finding what you need:
Emigration and immigration
Emigration and immigration--Psychological aspects
Emigration and immigration--Psychological aspects--Cross-cultural studies
Women immigrants--Sexual behavior
Emigration and immigration in literature
Immigrants in literature
Women immigrants--New Brunswick (New Jersey)
Rangers, rovers and spindles : soccer, immigration and textiles in New England and New Jersey / Roger Allaway. Haworth, NJ : St. Johann Press, c2005. Special Collections GV944.N43A44 2005
The people of New Jersey : their enduring journey. New Brunswick, N.J. : Rutgers University Libraries,  Special Collections F145.A1P46 2004
Suburban Sahibs : three immigrant families and their passage from India to America / S. Mitra Kalita. New Brunswick, N.J. ; London : Rutgers University Press, c2003. ALEX, CARR, NEWARK F142.M6K35 2003
Keys to successful immigration : implications of the New Jersey experience / edited by Thomas J. Espenshade. Washington, D.C. : Urban Institute Press, c1997. ALEX, NEWARK JV7037.K49 1997
Around Haledon : immigration and labor / Angelica M. Santomauro and Evelyn M. Hershey. Charleston, S.C. : Arcadia Pub., c2008. Special Collections F144.H33S36 2008
Utopia, New Jersey : travels in the nearest Eden / Perdita Buchan. New Brunswick, N.J. : Rutgers University Press, 2007. Special Collections, Newark HX655.N5B83 2007
Immigration and ethnicity in New Jersey history / by Douglas V. Shaw. Trenton, N.J. : New Jersey Historical Commission, Dept. of State, c1994. Alex, Douglass, Carr (DOCNJ) JV7037.S53 1994
Immigration : a documentary and reference guide / edited by Thomas Cieslik, David Felsen, and Akis Kalaitzidis. Westport, Conn. : Greenwood Press, 2009. ALEXANDER REF JV6465.I46 2009
Immigration in America today : an encyclopedia / edited by James Loucky, Jeanne Armstrong, and Larry J. Estrada. Westport, Conn. : Greenwood Press, 2006. ALEXANDER REF JV6465.I4754 2006
The new Americans : a guide to immigration since 1965 / edited by Mary C. Waters & Reed Ueda ; with Helen B. Marrow. Cambridge, Mass. : Harvard University Press, 2007. ALEXANDER STACKS V6455.N49 2007
The new immigration : an interdisciplinary reader / edited by Marcelo M. Suárez-Orozco, Carola Suárez-Orozco, and Desirée Baolian Qin. New York : Routledge, 2005. DOUGLASS REF JV6465.N49 2005