Columbia subject headings:
Christian sociology--United States--History.
Industrial Workers of the World--History.
Labor--Religious aspects--Christianity--United States--History.
United States--Social conditions--1865-1918.
Harvard subject headings:
Christian sociology--United States--History.
Industrial Workers of the World--History.
Labor--Religious aspects--Christianity--United States--History.
United States--Social conditions--1865-1918.
Princeton subject headings:
Christian sociology--United States--History.
Industrial Workers of the World--History.
Labor--Religious aspects--Christianity--United States--History.
United States--Social conditions--1865-1918.