Columbia subject headings:
Anarchism--United States--History--19th century.
Haymarket Square Riot, Chicago, Ill., 1886.
Harvard subject headings:
Anarchism--United States--History--19th century.
Haymarket Square Riot, Chicago, Ill., 1886.
Princeton subject headings:
Anarchism--United States--History--19th century.
Haymarket Square Riot, Chicago, Ill., 1886.