Columbia subject headings:
Harvard subject headings:
Church and social problems--Latin America--Catholic Church--Congresses.
Labor movement--Latin America--Congresses.
Labor movement--Latin America--Religious aspects--Christianity--Congresses.
Working class--Latin America--Congresses.
Princeton subject headings:
Church and social problems--Latin America--Catholic Church--Congresses.
Labor movement--Latin America--Congresses.
Labor movement--Latin America--Religious aspects--Christianity--Congresses.
Working class--Latin America--Congresses.