APA (7e ed.) Bronvermelding

Seuss, D. (2009). What was I scared of?: A glow-in-the-dark encounter (First Glow-in-the-dark ed.). Random House.

Chicago (17e ed.) Bronvermelding

Seuss, Dr. What Was I Scared of?: A Glow-in-the-dark Encounter. First Glow-in-the-dark ed. New York: Random House, 2009.

MLA (8e ed.) Bronvermelding

Seuss, Dr. What Was I Scared of?: A Glow-in-the-dark Encounter. First Glow-in-the-dark ed. Random House, 2009.