Horton, William K. <br/><br/>
E-learning by design 
by William Horton 
 - San Francisco  Pfeiffer  c2006 
 - xxxvi, 596 p.  ill  23 cm 
<br/><br/> Includes indexes 
<br/><br/><label>ISBN: </label>9780787984250  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Employees--Computer-assisted instruction.--Training of<br/>Computer-assisted instruction--Design.