Raffles, T. D. D., & Joly, J. R. (1832). Letters during a tour through some parts of France, Savoy, Switzerland, Germany, and the Netherlands, in the summer of 1817 (5th ed.). Longman.

Raffles, Thomas D. D., and Jaspar Robert Joly. Letters During a Tour Through Some Parts of France, Savoy, Switzerland, Germany, and the Netherlands, in the Summer of 1817. 5th ed. Longman, 1832.