TY - BOOK AU - Hartley,James TI - Designing instructional text SN - 0850389437 U1 - 686.22 23 PY - 1985/// CY - London PB - Kogan Page KW - Printing KW - Make-up KW - Textbooks N1 - Previous ed.: 1978; Bibliography: p152-172. - Includes index ER -