Columbia subject headings:
Africa--Archival resources--Washington (D.C.)
Africa--Library resources--Washington (D.C.)
Harvard subject headings:
Africa--Archival resources--Washington (D.C.)
Africa--Library resources--Washington (D.C.)
Archival resources--Washington (D.C.)
Library resources--Washington (D.C.)
Princeton subject headings:
Africa--Archival resources--Washington, D.C.
Africa--Library resources--Washington, D.C.