Columbia subject headings:
Marine biology--Technique--Congresses.
Measurement--Congresses.
Oceanography--Technique--Congresses.
Population biology--Technique--Congresses.
Harvard subject headings:
Marine biology--Technique--Congresses.
Measurement--Congresses.
Oceanography--Technique--Congresses.
Population biology--Technique--Congresses.
Princeton subject headings:
Marine biology--Technique--Congresses.
Measurement--Congresses.
Oceanography--Technique--Congresses.
Population biology--Technique--Congresses.