Columbia subject headings:
Water temperature--Huron, Lake (Mich. and Ont.)--Data processing.
Water temperature--Huron, Lake (Mich. and Ont.)--History.
Water temperature--Michigan--Bay City--Data processing.
Harvard subject headings:
Princeton subject headings:
Water temperature--Huron, Lake (Mich. and Ont.)--Data processing.
Water temperature--Huron, Lake (Mich. and Ont.)--History.
Water temperature--Michigan--Bay City--Data processing.