Williams, Marcia L. <br/><br/>
Distance learning  the essential guide /  [electronic resource] : 
Marcia L. Williams, Kenneth Paprock, Barbara Covington. 
 - Thousand Oaks, Calif. ;  London :  SAGE,  c1999. 
 - 1 online resource (166 p.) 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781452229140 (ebook) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distance education--United States.<br/>Telecommunication in education.