Thomas Clarkson, William Penn (1827). “Memoirs of the private and public life of William Penn: who settled the state of Pennsylvania, and founded the city of Philadelphia”, p.117
Wojciech Chmurzyński, Bruno Schulz, Muzeum Literatury im. Adama Mickiewicza w Warszawie (1995). “Bruno Schulz 1892-1942: katalog-pamiętnik wystawy "Bruno Schulz. Ad memoriam" w Muzeum Literatury im. Adama Mickiewicza w Warszawie”
Samuel Taylor Coleridge (1856). “The Complete Works of Samuel Taylor Coleridge: With an Introductory Essay Upon His Philosophical and Theological Opinions”, p.283