Gorman, Richard M. Discovering Piaget : A guide for teachers / [by] Richard M. Gorman. - Columbus, Ohio, : Merrill, [1972]. - vii, 119 p. : ill. ; 23 cm. Bibliogr.: p. 117-119. ISBN: 0675091101 Subjects--Personal Names: Piaget, Jean, 1896-1980. Subjects--Topical Terms: Learning, Psychology of