Columbia subject headings:
Corporations--Michigan--Detroit--History.
Detroit (Mich.)--Social conditions.
Social classes--Michigan--Detroit--History.
Social conflict--Case studies.
Harvard subject headings:
Corporate power--Michigan--Detroit--History.
Corporations--Michigan--Detroit--History.
Detroit (Mich.)--Social conditions.
Social classes--Michigan--Detroit--History.
Social conflict--Case studies
Princeton subject headings:
Case studies.
Corporations--Michigan--Detroit--History.
Detroit (Mich.)--Social conditions.
Social classes--Michigan--Detroit--History.
Social conflict--Case studies.