Goscinny, R., & Sempé, i. J. (1990). As brincadeiras do menino Nicolau. Teorema.
Lua i Stíl Chicago (17ú heag.)Goscinny, René, agus il. Jean-Jacques Sempé. As Brincadeiras Do Menino Nicolau. Teorema, 1990.
Lua MLA (8ú heag.)Goscinny, René, agus il. Jean-Jacques Sempé. As Brincadeiras Do Menino Nicolau. Teorema, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.