TY - BOOK AU - Clark,Ruth Colvin AU - Mayer,Richard E. TI - e-Learning and the Science of Instruction: Proven Guidelines for Consumers and Designers of Multimedia Learning SN - 9780787986834 U1 - 658.3124 23 PY - 2008/// CY - San Francisco PB - Pfeiffer KW - Web-based instruction KW - Computers in education KW - E-Learning N1 - Includes bibliographical references and index ER -