Columbia subject headings:
Harvard subject headings:
Fishes--Canada.
Fishes--Superior, Lake.
Fishes--United States.
Fishing--Canada
Fishing--Superior, Lake.
Fishing--United States
Princeton subject headings:
Fishes--Canada.
Fishes--Superior, Lake.
Fishes--United States.
Fishing--Canada.
Fishing--Superior, Lake.
Fishing--United States.