Columbia subject headings:
Ku Klux Klan (1915- )--Bibliography.
Harvard subject headings:
Ku Klux Klan (1915- )--Bibliography.
Ku Klux Klan (19th century)--Bibliography.
Ku-Klux Klan (1866-1869)--Bibliography.
Princeton subject headings:
Ku Klux Klan (1915- )--Bibliography.
Ku Klux Klan (19th century)--Bibliography.