Pratt Chris, Garton Alison F. Systems of representation in children development and use - - Chichester John Wiley and sons 1993 - 283 p. 24 cm. - Wiley series in developmental psychology and its applications . Child Psychology, Child Development, Symbolism ISBN: 0471925012 Subjects--Topical Terms: SymbolismChild DevelopmentChild Psychology Dewey Class. No.: 155.412 / PRA