"Ideology." The American Heritage Dictionary. 3rd ed., 1997.
Allen, Anita L. “Privacy in Health Care.” Encyclopedia of Bioethics, edited by Stephen G Post, 3rd ed., vol. 4, 2004.
“United Farm Workers Union.” Encyclopedia of Race and Racism, McMillan Reference USA, 2009, pp. 184–185. Gale Virtual Reference Library, go.galegroup.com/ps/i.do?p=GVRL&sw=w&u=lom_waynesu&v=2.1&it=r&id=GALE%7CCX2831200387&asid=81241f4f0615575faf9d963b337e173e.