National Colonization Society & Walsh, J. E. (1830). A Statement of the principles and objects of a proposed national society, for the cure and prevention of pauperism, by means of systematic colonization. published for the Provisional Committee by James Ridgway.

National Colonization Society and John Edward Walsh. A Statement of the Principles and Objects of a Proposed National Society, for the Cure and Prevention of Pauperism, by Means of Systematic Colonization. published for the Provisional Committee by James Ridgway, 1830.