APA (7th ed.) Citation

Lionni, L. (1959). Little blue and little yellow: A story for Pippo and Ann and other children. McDowell, Obolensky.

Chicago Style (17th ed.) Citation

Lionni, Leo. Little Blue and Little Yellow: A Story for Pippo and Ann and Other Children. New York: McDowell, Obolensky, 1959.

MLA (9th ed.) Citation

Lionni, Leo. Little Blue and Little Yellow: A Story for Pippo and Ann and Other Children. McDowell, Obolensky, 1959.