Keith, R. M., Smyth, M. G., & Joly, J. R. (1849). Memoirs and correspondence (official and familiar) of Sir Robert Murray Keith, K.B., envoy extraordinary ad minister plenipotentiary at the courts of Dresden, Copenhagen, and Vienna, from 1769-1792.: With a memoir of Queen Carolina Matilda of Denmark, and an account of the revolution there in 1772. H. Colburn.

Keith, Robert Murray, et al. Memoirs and Correspondence (official and Familiar) of Sir Robert Murray Keith, K.B., Envoy Extraordinary Ad Minister Plenipotentiary at the Courts of Dresden, Copenhagen, and Vienna, from 1769-1792.: With a Memoir of Queen Carolina Matilda of Denmark, and an Account of the Revolution There in 1772. H. Colburn, 1849.