Columbia subject headings:
Civil rights workers--United States--Bibliography.
King, Martin Luther, Jr., 1929-1968--Bibliography.
Harvard subject headings:
Bibliographies.
Civil rights workers--United States--Bibliography.
King, Martin Luther, Jr., 1929-1968--Bibliography.
Princeton subject headings:
Civil rights workers--United States--Bibliography.
King, Martin Luther, Jr., 1929-1968--Bibliography.