Teaching and learning at a distance :  foundations of distance education / 
Michael Simonson ... [et al.]. 
 - Columbus, OH. : Merrill,  c2000. 
 - xiv, 241 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0137692587  RM490.44 
<br/><br/><label>LCCN: </label>99-021229 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distance education.