Columbia subject headings:
Catholics--Canada.
Catholics--United States.
Christian sociology.
Jews--Canada.
Jews--United States.
Protestants--Canada.
Protestants--United States.
Religion and sociology.
United States--Religion.
Harvard subject headings:
Catholics--Canada.
Catholics--United States
Christian sociology.
Jews--Canada.
Jews--United States.
Protestants--Canada.
Protestants--United States
Religion and sociology
United States--Religion.
Princeton subject headings: