O'Brien, L. H., & Joly, J. R. (1785). Letters concerning the trade and manufactures of Ireland: Principally so far as the same relate to the making iron in this kingdom, and the manufacture and export of iron wares, in which certain facts and arguments set out by Lord Sheffield in his Observations on the trade and present state of Ireland are examined. Luke White.

O'Brien, Lucius Henry, and Jaspar Robert Joly. Letters Concerning the Trade and Manufactures of Ireland: Principally so Far as the Same Relate to the Making Iron in This Kingdom, and the Manufacture and Export of Iron Wares, in Which Certain Facts and Arguments Set Out by Lord Sheffield in His Observations on the Trade and Present State of Ireland Are Examined. Luke White, 1785.