Columbia subject headings:
Gary (Ind.)--Ethnic relations.
Gary (Ind.)--History.
Gary (Ind.)--Social conditions.
Minorities--Indiana--Gary--History--20th century.
Harvard subject headings:
Gary (Ind.)--Ethnic relations.
Gary (Ind.)--History.
Gary (Ind.)--Social conditions.
Minorities--Indiana--Gary--History--20th century.
Princeton subject headings:
Gary (Ind.)--Ethnic relations.
Gary (Ind.)--History.
Gary (Ind.)--Social conditions.
Minorities--Indiana--Gary--History--20th century.