Little blue and little yellow : a story for Pippo and Ann and other children /
by Leo Lionni.
- New York : Scholastic Inc. 1993, c1959.
- [40] p. : col. ill. ; 21 cm.
Splashes of color and abstract forms tell the story of little blue and his friend little yellow who hugged and hugged each other until they were green -- and unrecognizable to their parents.