- German Reformed Church (U.S.)
- Reformed Church
- Catechisms, English.
- Reformed Church in the United States
- Catechisms, German.
- Imprints (Publishers' and printers' statements)
- Reformed Church in the United States.
- General Synod of the Evangelical Lutheran Church in the United States
- Synod of the Free Independent German Reformed Congregations of Pennsylvania
- Catechisms, German
- German Reformed Church (U.S.).
- Theological seminaries
- United States
- United States.
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