Columbia subject headings:
Harvard subject headings:
Animal ecology--Prairie Provinces--History.
Human ecology--Prairie Provinces--History.
Human-animal relationships--Prairie Provinces--History.
Nature--Effect of human beings on--Prairie Provinces--History.
Prairie Provinces--History.
Princeton subject headings:
Animal ecology--Prairie Provinces--History.
Human ecology--Prairie Provinces--History.
Human-animal relationships--Prairie Provinces--History.
Nature--Effect of human beings on--Prairie Provinces--History.
Prairie Provinces--History.