The shrinking of Treehorn.
Drawings by Edward Gorey.
Heide, F. Parry., Gorey, E. (1971). The shrinking of Treehorn. New York: Holiday House.
Heide, Florence Parry, and Edward Gorey. The Shrinking of Treehorn. New York: Holiday House, 1971.
Warning: These citations may not always be complete (especially for serials).