Columbia subject headings:
Catholic Church--Relations--United States.
Church societies (Canon law)
Church societies--United States.
Interdenominational cooperation--Catholic Church.
Interdenominational cooperation--United States.
Laity (Canon law)
Laity--United States.
Harvard subject headings:
Catholic Church
Ecumenical associations (Canon law)
Ecumenical associations (Catholic Church)--United States.
Interdenominational cooperation--United States.
Princeton subject headings: