The child's conception of the world - Piaget, Jean, 1896-1980.; Tomlinson, Joan; Tomlinson, Andrew (London, K. Paul, Trench, Trubner & co., ltd.; New York, Harcourt, Brace and company, 1929)
"Translated by Joan and Andrew Tomlinson."
Keywords: Child psychology; Imagery (Psychology) in children -- Congresses; Drawing ability in children -- Congresses; Earth in art -- Congresses