Columbia subject headings:
Harvard subject headings:
Philosophy--Abstracts--Periodicals.
Philosophy--Bibliography--Periodicals.
Philosophy--Periodicals--Indexes--Periodicals.
Religion--Abstracts--Periodicals.
Religion--Bibliography--Periodicals.
Religion--Periodicals--Indexes--Periodicals.
Princeton subject headings:
Periodicals.
Philosophy--Abstracts--Periodicals.
Philosophy--Bibliography--Periodicals.
Religions--Abstracts--Periodicals.
Religions--Bibliography--Periodicals.
Theology--Abstracts--Periodicals.
Theology--Bibliography--Periodicals.