The early growth of logic in the child : classification and seriation / Barbel Inhelder and Jean Piaget ; translated from the French by E.A. Lunzer and D. Papert. Inhelder, Barbel. Piaget, Jean, 1896-1980. jt. aut. Lunzer, E. A. tr. Papert, D. tr. Logic. Reasoning in children. BF723.R4 155.4 19 INE Translation of La genese des structures logiques elementaire. Includes bibliographical references and index. London : Routledge and K. Paul, 1964. 1964. 1964 Text xxv, 302 p. : eng eng fre