Chesterton, G. K. (1967). The man who knew too much. D. Finlayson.
Lua i Stíl Chicago (17ú heag.)Chesterton, Gilbert Keith. The Man Who Knew Too Much. Beaconsfield: D. Finlayson, 1967.
Lua MLA (9ú heag.)Chesterton, Gilbert Keith. The Man Who Knew Too Much. D. Finlayson, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.