Books by Jager, Eric 1 books by this author Found Matches | Filtered / Jager, The Parrot's Voice: Language and the Self in Robinson Crusoe, 1988. Jager, Eric: The Parrot’s Voice: Language and the Self in Robinson Crusoe. In: Eighteenth-Century Studies 21/3 (1988). Internet: http://www.jstor.org/stable/2738687. S. 316–333.