Columbia subject headings:
Bogotá (Colombia)--Economic conditions.
Cali (Colombia)--Economic conditions.
Working class--Colombia--Bogotá.
Working class--Colombia--Cali.
Harvard subject headings:
Bogotá (Colombia)--Economic conditions.
Cali (Colombia)--Economic conditions.
Labor--Colombia--Bogotá
Labor--Colombia--Cali.
Working class--Colombia--Bogotá.
Working class--Colombia--Cali.
Princeton subject headings:
Bogotá (Colombia)--Economic conditions.
Cali (Colombia)--Economic conditions.
Labor--Colombia--Bogota.
Labor--Colombia--Cali.