Columbia subject headings:
Harvard subject headings:
Biogeography--Abstracts--Periodicals.
Hydrology--Abstracts--Periodicals.
Meteorology--Abstracts--Periodicals.
Oceanography--Abstracts--Periodicals.
Soil science--Abstracts--Periodicals.
Princeton subject headings:
Biogeography--Abstracts--Periodicals.
Climatology--Abstracts--Periodicals.
Paleobiogeography--Abstracts--Periodicals.