Columbia subject headings:
Aquatic ecology--Congresses.
Environmental chemistry--Congresses.
Photochemistry--Congresses.
Water chemistry--Congresses.
Harvard subject headings:
Aquatic ecology--Congresses
Environmental chemistry--Congresses
Photochemistry--Congresses.
Water chemistry--Congresses.
Princeton subject headings:
Aquatic ecology--Congresses.
Environmental chemistry--Congresses.
Photochemistry--Congresses.
Water chemistry--Congresses.