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Gerrald, Joseph. A convention the only means of saving us from ruin. In a letter, addressed to the people of England, by Joseph Gerrald. The second edition. London, MDCCXCIV. [1794]. Eighteenth Century Collections Online. Gale. Carnegie Mellon University Libraries. 30 Nov. 2015 (subscription required)
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Davis, Michael T. Gerrald, Joseph (1763–1796). Oxford Dictionary of National Biography. Online ed. Ed. Lawrence Goldman. Oxford: OUP, 2004. Accessed 22 Nov. 2015.