Campbell, J., & Joly, J. R. (1774). A political survey of Britain: Being a series of reflections on the situation, lands, inhabitants, revenues, colonies, and commerce of this island. Intended to shew that we have not as yet approached near the summit of improvement ... In two volumes. By John Campbell, .. printed for the author; and sold by Richardson and Urquhart; J. Wilkie; T. Cadell, P. Elmsley, and T. Becket [and 4 others in London].

Campbell, John, and Jaspar Robert Joly. A Political Survey of Britain: Being a Series of Reflections on the Situation, Lands, Inhabitants, Revenues, Colonies, and Commerce of This Island. Intended to Shew That We Have Not as yet Approached Near the Summit of Improvement ... In Two Volumes. By John Campbell, .. printed for the author; and sold by Richardson and Urquhart; J. Wilkie; T. Cadell, P. Elmsley, and T. Becket [and 4 others in London], 1774.