Columbia subject headings:
Environmental protection--Great Lakes.
Great Lakes--Environmental conditions.
Restoration ecology--Great Lakes.
Harvard subject headings:
Great Lakes (North America)--Environmental conditions.
Great Lakes (North America)--Management--Evaluation.
Restoration ecology--Great Lakes (North America)
Restoration ecology--Great Lakes.
Princeton subject headings:
Environmental protection--Great Lakes.
Great Lakes (North America)--Environmental conditions.
Restoration ecology--Great Lakes.