TY - BOOK AU - Smith, Patricia L., AU - Ragan, Tillman J., TI - Instructional design SN - 047136570X (Pbk.) AV - LB1028.38 .S64 1999 PY - 1999/// CY - New York PB - Wiley KW - Instructional systems KW - Design N1 - Includes bibliographical references and index ER -