Geronimo Stilton. (2019). Geronimo Stilton Secret Agent (2008.). Scholastic Publications.
Lua i Stíl Chicago (17ú heag.)Geronimo Stilton. Geronimo Stilton Secret Agent. 2008. Scholastic Publications, 2019.
Lua MLA (9ú heag.)Geronimo Stilton. Geronimo Stilton Secret Agent. 2008. Scholastic Publications, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.