Columbia subject headings:
Civil rights movements--United States--History--Sources.
Hoover, J. Edgar (John Edgar), 1895-1972.
King, Martin Luther, Jr., 1929-1968.
Levison, Stanley D., 1912-1979.
United States. Federal Bureau of Investigation--Archives.
Harvard subject headings:
Princeton subject headings:
African Americans--Civil rights--History--20th century--Sources.
King, Martin Luther, Jr., 1929-1968.
United States. Federal Bureau of Investigation--Archives.