Verduin, John R. <br/><br/>
Distance education :  the foundations of effective practice / 
John R. Verduin Jr., Thomas A. Clark. 
 - San Francisco :  Jossey-Bass,  1991. 
 - xvi, 279p :  ill. ;  22cm. 
 - Jossey-Bass higher and adult education series .
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>155542306X 
<br/><br/><label>LCCN: </label>9046107  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distance education.