Clark, Ruth Clvin <br/><br/>
E-Learning and the science of instruction  : proven guidelines for consumers and designers of multimedia learning 
Ruth  Colvin Clark and Richard E. Mayer 
 - 3rd ed. 
 - USA:  Pfeiffer,  2011. 
 - xviii, 502p. 
<br/><br/><label>ISBN: </label>97804708743301 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business education - Computer assisted instruction
<br/><br/><label>Dewey Class. No.: </label>658.312402854678  / CLE