Reference materials are a good way to begin your research:
Reference Databases:
The Cambridge Encyclopedia of Anthropology (CEA)
International Encyclopedia of the Social & Behavior Sciences
21st Century Anthropology: A Reference Handbook (2010)
Asian American History and Culture: An Encyclopedia (2010)
Asian American Society: An Encyclopedia (2014)
Encyclopedia of African-American Culture and History, 2nd edition (2006)
Encyclopedia of Anthropology (2006)
Encyclopedia of Food and Culture (2004)
Encyclopedia of Race and Racism (2009)
Encyclopedia of Race, Ethnicity, Society (2008)
Ethnic Dress in the United States : A Cultural Encyclopedia (2014)
Gale Encyclopedia of Multicultural America (2014)
Hispanic American Religious Cultures (2009)
Immigrants in American History: Arrival, Adaptation and Integration (2013)
The Italian American Experience: An Encyclopedia (1999)
Mexican American Experience: An Encyclopedia (2003)
Oxford The Oxford Encyclopedia of Latinos and Latinas in the United States (2005)
Dictionary of Social Sciences. Reference - H41 .D53 2002 (also available through Oxford Reference)
Encyclopedia of Evolution: Humanity’s Search for its Origins
Encyclopedia of World Cultures 10 volumes Reference - GN307 .E53 1991
Encyclopedia of Native American Religions Reference - E98 .R3 H73 1992
Encyclopedia of Taboos.
Sage Encyclopedia of Social Science Research Methods. 3 volumes - Reference H62 .S34 2004