Columbia subject headings:
Harvard subject headings:
Catholic Church--Doctrines--History--20th century.
Catholic Worker Movement.
Catholic worker.
Christian sociology--Catholic Church--History--20th century.
Day, Dorothy, 1897-1980
Maurin, Peter
Peace--Religious aspects--Catholic Church--History of doctrines--20th century.
Princeton subject headings:
Catholic Church--Doctrines--History--20th century.
Catholic Worker Movement.
Catholic worker.
Christian sociology--Catholic Church--History--20th century.
Day, Dorothy, 1897-1980.
Maurin, Peter.
Peace--Religious aspects--Catholic Church--History of doctrines--20th century.