Columbia subject headings:
Basins (Geology)--Analysis--Congresses.
Lake sediments--Congresses.
Paleolimnology--Congresses.
Sedimentation and deposition--Congresses.
Harvard subject headings:
Basins (Geology)--Analysis--Congresses.
Lake sediments--Congresses.
Paleolimnology--Congresses.
Sedimentation and deposition--Congresses.
Princeton subject headings:
Lake sediments--Congresses.
Petroleum--Prospecting--Congresses.
Sedimentation and deposition--Congresses.