The psychology of intelligence / Jean Piaget ; translated by Malcolm Piercy and D.E. Berlyne. Piaget, Jean. 1896-1980. Intellect. BF431 .P4827213 2001 153.9 PIP Includes bibliographical references (p. [191]-193) and indexes. London : New York ; Routledge, 2001. 2001. 2001 Text xi, 202 p. ; http://www.loc.gov/catdir/enhancements/fy0650/2001041222-d.html http://www.loc.gov/catdir/enhancements/fy1012/2001041222-b.html eng eng fre Routledge classics