Gagne Robert M. <br/><br/>
Principles of instructional design 

 - 2 
 - New York, USA  Holt, Rinehart and Winston   1979 
 - x,321p. 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology Learning