TY - BOOK AU - Maier,Henry William TI - Three theories of child development: The contributions of Erik H. Erikson, Jean Piaget, and Robert R. Sears, and their applications PY - 1965///] CY - New York PB - Harper & Row KW - Erikson, Erik Homburger, KW - Piaget, Jean, KW - Sears, Robert Richardson KW - Child psychology N1 - Includes bibliogr. references and index ER -