Sleeman Phillip J. <br/><br/>
Instructional Media And Technology : A Guide To Accountable Learning Systems / Phillip J. Sleeman Ted C. Cobun And D. M. Rockwell. 

 - D. M. 
 -  New York : Longman 
 - C1979. 
 -  XXXI 1518P. 24CM. .
<br/><br/><br/>ENG 
<br/><br/><label>ISBN: </label>0582280400 (Hbk)