Columbia subject headings:
Business and politics--Oregon--Portland--History.
Portland (Or.)--Economic conditions.
Portland (Or.)--Politics and government.
Harvard subject headings:
Business and politics--Oregon--Portland--History.
Portland (Or.)--Economic conditions--20th century.
Portland (Or.)--Economic conditions.
Portland (Or.)--Politics and government--20th century.
Portland (Or.)--Politics and government.
Princeton subject headings:
Business and politics--Oregon--Portland--History.
Portland (Or.)--Economic conditions.
Portland (Or.)--Politics and government.