TY - BOOK AU - Valletutti,Peter J. AU - Dummett,Leonie TI - Cognitive development: a functional approach SN - 1879105632 AV - LB1590.3 .V35 1992 U1 - 370.152 VAL D 20 PY - 1992/// CY - San Diego, Calif. PB - Singular Pub. Corp. KW - Thought and thinking KW - Study and teaching KW - United States KW - Cognition in children KW - Children with disabilities KW - Education N1 - Includes bibliographical references and index ER -