PIAGET, Jean Inhelder, Barbel Szeminska, alina The child's conception of geometry / by Jean Piaget, Barbel Inhelder, Alina Szeminska; translated - New York Basic Books Inc. 1970 - 411 p. Includes index. ISBN: 70197 Subjects--Topical Terms: Educational psychology Dewey Class. No.: 370.15 / PIA