Feuerbach, P. J. A., Daumer, G. F., Schmidt, v. L., & Joly, J. R. (1834). Caspar Hauser: An account of an individual kept in a dungeon, separated from all communication with the world from early childhood to about the age of seventeen. Drawn up from legal documents (3d ed.). Simpkin and Marshall.

Feuerbach, Paul Johann Anselm, et al. Caspar Hauser: An Account of an Individual Kept in a Dungeon, Separated from All Communication with the World from Early Childhood to About the Age of Seventeen. Drawn Up from Legal Documents. 3d ed. Simpkin and Marshall, 1834.