Simonson, Michael <br/><br/>
Teaching and learning at a distance  Foundations of distance education 
Michael Simonson, Sharon E. Smaldino... 
 - 5. Aufl. 
 - XXIV; 383 S. : Ill., graph. Darst. 
<br/><br/><label>ISBN: </label>0-13-248731-4  41,99 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Online Education<br/>Internet<br/>Lehren<br/>Lernen<br/>Fernstudium