Seuss, D. (2009). What was I scared of?: A glow-in-the-dark encounter (First Glow-in-the-dark ed.). Random House.
Lua i Stíl Chicago (17ú heag.)Seuss, Dr. What Was I Scared of?: A Glow-in-the-dark Encounter. First Glow-in-the-dark ed. New York: Random House, 2009.
Lua MLA (8ú heag.)Seuss, Dr. What Was I Scared of?: A Glow-in-the-dark Encounter. First Glow-in-the-dark ed. Random House, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.