Columbia subject headings:
Harvard subject headings:
Anti-communist movements--Europe, Eastern--Societies, etc.--Directories.
Civil rights--Europe, Eastern--Societies, etc.--Directories.
Europe, Eastern--Directories.
Non-governmental organizations--Europe, Eastern--Directories.
Peace--Societies, etc.--Directories
Pressure groups--Europe, Eastern--Directories.
Princeton subject headings:
Europe, Eastern--Directories.