Columbia subject headings:
Information resources--South Africa--Eastern Cape--Directories.
Information resources--South Africa--Western Cape--Directories.
Special libraries--South Africa--Eastern Cape--Directories.
Special libraries--South Africa--Western Cape--Directories.
Harvard subject headings:
Information resources--South Africa--Eastern Cape--Directories.
Information resources--South Africa--Western Cape--Directories.
Special libraries--South Africa--Eastern Cape--Directories.
Special libraries--South Africa--Western Cape--Directories.
Princeton subject headings: