Columbia subject headings:
Communication--Religious aspects--Catholic Church--History.
Communication--Religious aspects--Christianity--History.
Evangelicalism--History.
Printed ephemera--History.
Proselytizing--History.
Harvard subject headings:
Communication--Religious aspects--Catholic Church--History.
Communication--Religious aspects--Christianity--History.
Evangelicalism--History
Printed ephemera--History.
Proselytizing--History.
Princeton subject headings: