Columbia subject headings:
Catholic Church--Doctrines--History--20th century--Congresses.
Catholic Church. Pope (1978-2005 : John Paul II). Sollicitudo rei socialis--Congresses.
Christian sociology--Catholic Church--Papal documents--Congresses.
Harvard subject headings:
Catholic Church--Doctrines--History--20th century--Congresses.
Catholic Church. Pope (1978-2005 : John Paul II). Sollicitudo rei socialis--Congresses.
Christian sociology--Catholic Church--Papal documents--Congresses.
Princeton subject headings:
Catholic Church--Latin America--History--20th century--Congresses.
Labor--Religious aspects--Christianity--Latin America--Congresses.