Columbia subject headings:
Harvard subject headings:
Anarchism--Portugal--Lisbon--History--20th century.
Anarchists--Portugal--Lisbon--Biography.
Labor movement--Portugal--Lisbon--History--20th century.
Lisbon (Portugal)--Guidebooks.
Syndicalists--Portugal--Lisbon--Biography.
Princeton subject headings:
Anarchism--Portugal--Lisbon--History--20th century.
Anarchists--Portugal--Lisbon--Biography.
Guidebooks.
Labor movement--Portugal--Lisbon--History--20th century.
Lisbon (Portugal)--Guidebooks.
Syndacalists--Portugal--Lisbon--Biography.