Columbia subject headings:
Chicago (Ill.)--Politics and government--1951---Case studies.
Municipal government--Case studies.
Politics, Practical.
Pressure groups--Illinois--Chicago--Case studies.
Harvard subject headings:
Chicago (Ill.)--Politics and government--1951---Case studies.
Pressure groups--Illinois--Chicago--Case studies.
Princeton subject headings:
Chicago (Ill.)--Politics and government--1951---Case studies.
Pressure groups--Illinois--Chicago--Case studies.