Columbia subject headings:
Humanities--Congresses--Bibliography.
Social sciences--Congresses--Bibliography.
Social sciences--Societies, etc.--Directories.
Harvard subject headings:
Humanities--Congresses--Bibliography--Periodicals.
Humanities--Societies, etc.--Directories.
Social sciences--Congresses--Bibliography--Periodicals.
Social sciences--Societies, etc.--Directories.
Princeton subject headings:
Directories.
Humanities--Congresses--Bibliography.
Social sciences--Congresses--Bibliography.
Social sciences--Societies, etc.--Directories.