Geronimo Stilton. (2019). Geronimo Stilton Secret Agent (2008.). Scholastic Publications.
Cita Chicago (17th ed.)Geronimo Stilton. Geronimo Stilton Secret Agent. 2008. Scholastic Publications, 2019.
Cita MLA (9th ed.)Geronimo Stilton. Geronimo Stilton Secret Agent. 2008. Scholastic Publications, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.