Columbia subject headings:
Chile--History--1824-1920--Congresses.
Iquique (Chile)--History--Congresses.
Massacres--Chile--Iquique--History--20th century--Congresses.
Strikes and lockouts--Chile--Iquique--History--20th century--Congresses.
Harvard subject headings:
Chile--History--1824-1920--Congresses.
Iquique (Chile)--History--Congresses.
Massacres--Chile--Iquique--History--20th century--Congresses.
Strikes and lockouts--Chile--Iquique--History--20th century--Congresses.
Princeton subject headings:
Chile--History--1824-1920--Congresses.
Iquique (Chile)--History--Congresses.
Massacres--Chile--Iquique--History--20th century--Congresses.
Strikes and lockouts--Chile--Iquique--History--20th century--Congresses.