Columbia subject headings:
Anarchism--Illinois--Chicago--History--19th century.
Chicago (Ill.)--Social conditions.
Haymarket Square Riot, Chicago, Ill., 1886.
Socialism--Illinois--Chicago--History--19th century.
Harvard subject headings:
Anarchism--Illinois--Chicago--History--19th century.
Chicago (Ill.)--Social conditions.
Haymarket Square Riot, Chicago, Ill., 1886.
Socialism--Illinois--Chicago--19th century.
Socialism--Illinois--Chicago--History--19th century.
Princeton subject headings:
Anarchism--Illinois--Chicago--History--19th century.
Chicago (Ill.)--Social conditions.
Haymarket Square Riot, Chicago, Ill., 1886.
Socialism--Illinois--Chicago--History--19th century.