Columbia subject headings:
Ku Klux Klan (1915- )--History.
Racism--United States--History.
Harvard subject headings:
Ku Klux Klan (1915- )--History.
Racism--United States--History
White supremacy movements--United States--History.
Princeton subject headings:
Ku Klux Klan (1915- )--History.
Racism--United States--History.