Columbia subject headings:
Christianity--Europe, Eastern--Societies, etc.--Directories.
Christianity--Former Soviet republics--Societies, etc.--Directories.
Christianity--International cooperation.
Christianity--Societies, etc.--Directories.
Harvard subject headings:
Christianity--Europe, Eastern--Societies, etc.--Directories.
Christianity--Former Soviet republics--Societies, etc.--Directories.
Christianity--International cooperation.
Christianity--Societies, etc.--Directories.
Princeton subject headings: