Duncan, J. M. 1. (1824). A plea for ministerial liberty: A discourse addressed, by appointment, to the directors and students of the Theological Seminary of the Presbyterian Church at Princeton, on the 17th of May, 1824. Baltimore: published by Cushing & Jewett, John D. Toy, printer.

Duncan, John M. 1790-1851. A Plea for Ministerial Liberty: A Discourse Addressed, By Appointment, to the Directors and Students of the Theological Seminary of the Presbyterian Church At Princeton, On the 17th of May, 1824. Baltimore: published by Cushing & Jewett, John D. Toy, printer, 1824.

Duncan, John M. 1790-1851. A Plea for Ministerial Liberty: A Discourse Addressed, By Appointment, to the Directors and Students of the Theological Seminary of the Presbyterian Church At Princeton, On the 17th of May, 1824. Baltimore: published by Cushing & Jewett, John D. Toy, printer, 1824.