Little Blue and Little Yellow : A Story for Pippo and Ann and Other Children
by Leo Lionni.
- [50th anniversary ed.]
- New York : Alfred A. Knopf, [2009], c1959.
- 1 v. (unpaged) : col. ill. ; 21 cm.
"Originally published by McDowell Obolensky, Inc., New York, in 1959"--T.p. verso. Edition statement from cover.
A little blue spot and a little yellow spot are best friends, and when they hug each other they become green.