TY - BOOK AU - Snelbecker, Glenn E TI - Learning theory, instructional theory and psycho educational design SN - 0-07-059450-3 U1 - 154.41 Sn2 PY - 1974/// CY - New York PB - : McGraw - Hill Book Copany, KW - Educational psychology KW - | Learning - psychology KW - | Psychology ER -