Furth, Hans G. Piaget and knowledge theoretical foundations / [Book] : [by] Hans G. Furth. - Englewood Cliffs, N.J : Prentice-Hall, [1969]. - xvii, 270 p. ; 24 cm. include index. All. Subjects--Topical Terms: Knowledge, Theory of.Cognition.Intellect. Dewey Class. No.: 153.0924