Kurzgefasste historische Nachricht von der gegenwärtigen Verfassung der evangelischen Brüder-Unität augsburgischer Confession. A concise historical account of the present constitution of the Unitas Fratrum; or, Unity of the Evangelical Brethren, who adhere to the Augustan confession. Translated from the German with a preface by the Rev. B. La Trobe. The preface signed: August Gottlieb Spangenberg