CLARK, R.C. & MAYER, R.E. <br/><br/>
E LEARNING AND THE SCIENCE OF INSTRUCTION 

 -  USA : PFEIFFER  2003 
 - 322 p. 
<br/><br/><label>ISBN: </label>0000787960519 
<br/><br/><label>Subjects--Topical Terms: </label><br/>E LEARNING : BUSINESS EDUCATION
<br/><br/><label>Dewey Class. No.: </label>371.334  / C41