Isenberg, Joan P., 1941- Playthings as learning tools: a parents' guide / Joan P. Isenberg and Judith E. Jacobs. - New York: Wiley, 1982. - 176pages : illustrations ; 23cm pbk - Wiley parent education series. . ISBN: 0471090425 Subjects--Topical Terms: Play.Child development.Educational games.Educational toys.