Sprague, W. B. (1857). A sermon preached in the Second Presbyterian Church, Albany, Sunday afternoon, September 21, 1857: On occasion of the death of the Rev. John Ludlow, D.D., professor in the Theological Seminary of the Reformed Dutch Church in the United States. Albany [N.Y.]: Van Benthuysen, Printer.

Sprague, William Buell. A Sermon Preached in the Second Presbyterian Church, Albany, Sunday Afternoon, September 21, 1857: On Occasion of the Death of the Rev. John Ludlow, D.D., Professor in the Theological Seminary of the Reformed Dutch Church in the United States. Albany [N.Y.]: Van Benthuysen, Printer, 1857.

Sprague, William Buell. A Sermon Preached in the Second Presbyterian Church, Albany, Sunday Afternoon, September 21, 1857: On Occasion of the Death of the Rev. John Ludlow, D.D., Professor in the Theological Seminary of the Reformed Dutch Church in the United States. Albany [N.Y.]: Van Benthuysen, Printer, 1857.