TY - BOOK A1 - Piaget, Jean T1 - Language and Thought of the Child. London (Routledge) 1959. Y1 - 1959 N1 - Ex libris Marco Bacciagaluppi ER - TY - BOOK A1 - Piaget, Jean T1 - Judgement and reasoning in the child, Paterson (Littlefield, Adams & Co.) 1959. Y1 - 1959 ER -