Columbia subject headings:
Hong Kong (China)--Commerce--Directories.
Industries--China--Hong Kong--Directories.
Industries--China--Macau (Special Administrative Region)--Directories.
Macau (China : Special Administrative Region)--Commerce--Directories.
Harvard subject headings:
Hong Kong (China)--Commerce--Directories.
Hong Kong (China)--Industries--Directories.
Macau (China : Special Administrative Region)--Commerce--Directories.
Macau (China : Special Administrative Region)--Industries--Directories.
Princeton subject headings: