Columbia subject headings:
Chile--Occupations.
Chile--Politics and government--1970-1973.
Chile--Social conditions.
Labor unions--Chile.
Harvard subject headings:
Chile--Politics and government--1970-1973.
Chile--Social conditions.
Labor unions--Chile
Occupations--Chile.
Princeton subject headings:
Chile--Politics and government--1970-1973.
Chile--Social conditions.
Labor unions--Chile.
Occupations--Chile.