Piaget Jean, Gabain Marjorie Language and thought of the child - - London Routledge and Kegan Paul 1952 - 246 p. 23 cm. - International library of psychology philosophy and scientific method . Child Development, Language, Congnitive Development Subjects--Topical Terms: Congnitive DevelopmentLanguageChild Development Dewey Class. No.: 155.4 / PIA