Columbia subject headings:
Fishes--Effect of water pollution on--Congresses.
Organic water pollutants--Toxicology--Congresses.
Water chemistry--Congresses.
Water quality management--Congresses.
Harvard subject headings:
Fishes--Effect of water pollution on--Congresses.
Organic water pollutants--Toxicology--Congresses.
Water chemistry--Congresses.
Water quality management--Congresses
Princeton subject headings:
Fishes--Effect of water pollution on--Congresses.
Organic water pollutants--Toxicology--Congresses.
Water chemistry--Congresses.
Water quality management--Congresses.