Columbia subject headings:
Africa--Societies, etc.--Directories.
Africa--Study and teaching--Germany (West)--Directories.
Associations, institutions, etc.--Germany (West)--Directories.
Harvard subject headings:
Africa--Archival resources--Directories.
Africa--Historiography--Directories.
Africa--Library resources--Directories.
Africa--Societies, etc.--Directories.
Africa--Study and teaching (Higher)--Germany--Directories.
Africa--Study and teaching--Germany (West)--Directories.
African philology--Directories.
Archival resources--Germany--Directories.
Associations, institutions, etc.--Germany (West)--Directories.
Library resources--Germany--Directories.
Princeton subject headings: