Columbia subject headings:
Anarchism--Argentina--History.
Anarchists--Argentina--Biography.
Galicians (Spain)--Argentina--History.
Immigrants--Argentina--History.
Harvard subject headings:
Anarchism--Argentina--History.
Anarchists--Argentina--Biography.
Anarchists--Argentina--History.
Galicians (Spain)--Argentina--Biography.
Galicians (Spain)--Argentina--History.
Labor unions--Argentina--History
Princeton subject headings:
Anarchism--Argentina--History.
Anarchists--Argentina--Biography.
Anarchists--Argentina--History.
Galicians (Spain)--Argentina--Biography.
Galicians (Spain)--Argentina--History.
Labor unions--Argentina--History.