Columbia subject headings:
Humanities--Abstracts--Periodicals.
Philosophy--Abstracts--Periodicals.
Social sciences--Abstracts--Periodicals.
Harvard subject headings:
Humanities--Abstracts--Periodicals.
Philosophy--Abstracts--Periodicals.
Social sciences--Abstracts--Periodicals
Princeton subject headings:
Abstracts.
Humanities--Abstracts--Periodicals.
Periodicals.
Philosophy--Abstracts--Periodicals.
Social sciences--Abstracts--Periodicals.