Clark, Ruth Colvin. <br/><br/>
E-learning and the science of instruction :  proven guidelines for consumers and designers of multimedia learning / 
Ruth Colvin Clark, Richard E. Mayer. 
 - 2nd ed. 
 - San Francisco, CA :  Pfeiffer,  c2008. 
 - xvi, 476 p. :  ill. ;  24 cm. +  1 CD-ROM (4 3/4 in.) 
<br/><br/>Includes bibliographical references (p. 405-426) and index. 
<br/><br/>
<br/><br/><label>ISBN: </label>9780787986834   
<br/><br/><label>LCCN: </label>2007013434 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business education--Computer-assisted instruction.
<br/><br/><label>Dewey Class. No.: </label>658.312402854678  / CLE