Columbia subject headings:
Harvard subject headings:
Acid precipitation (Meteorology)--Environmental aspects--Mathematical models--Congresses.
Acid rain--Environmental aspects--Mathematical models--Congresses.
Lakes--Mathematical models--Congresses.
Water chemistry--Environmental aspects--Mathematical models--Congresses.
Water--Pollution--Environmental aspects--Mathematical models--Congresses.
Princeton subject headings:
Acid precipitation (Meteorology)--Environmental aspects--Mathematical models.
Acid rain--Environmental aspects--Mathematical models.
Lakes--Mathematical models.
Water chemistry--Environmental aspects--Mathematical models.
Water--Pollution--Environmental aspects--Mathematical models.