Columbia subject headings:
Harvard subject headings:
Chemistry--Abstracts--Periodicals.
Earth sciences--Abstracts--Periodicals.
Life sciences--Abstracts--Periodicals.
Princeton subject headings:
Abstracts.
Chemistry--Abstracts--Periodicals.
Earth sciences--Abstracts--Periodicals.
Life sciences--Abstracts--Periodicals.
Periodicals.
Science--Abstracts--Periodicals.