Columbia subject headings:
Catholic Church. Pope (1978-2005 : John Paul II). Laborem exercens. English.
Industrial relations--Religious aspects.
Labor--Religious aspects--Christianity--Catholic Church.
Laborem exercens--Commentaries.
Right to labor.
Work--Religious aspects--Christianity.
Working class--Religious aspects.
Harvard subject headings:
Catholic Church. Pope (1978-2005 : John Paul II). Laborem exercens.
Christian socialism.
Labor--Religious aspects--Christianity
Princeton subject headings: