The growth of competence : proceedings of a D.S.T. Study Group on 'The growth of competence' held jointly with the Ciba Foundation, London, January 1972, being the sixth study group in a programme on 'The origins of human behaviour' / edited by Kevin Connolly and Jerome Bruner. - Connolly, Kevin J 1937-; Bruner, Jerome S. (Jerome Seymour) (Developmental sciences series, 1974)