Hacks, P. (1983). Jules Ratte. Kinderbuchverlag.
Cita Chicago (17th ed.)Hacks, Peter. Jules Ratte. Berlin: Kinderbuchverlag, 1983.
Cita MLA (8th ed.)Hacks, Peter. Jules Ratte. Kinderbuchverlag, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.