Columbia subject headings:
Climatic changes.
Meteorology--Periodicity.
Paleoclimatology.
Harvard subject headings:
Climatic changes
Fairbridge, Rhodes W. (Rhodes Whitmore), 1914-2006.
Meteorology--Periodicity
Paleoclimatology.
Princeton subject headings:
Climatic changes.
Meteorology--Periodicity.
Paleoclimatology.