Gagné, Robert M. <br/><br/>
Principles of instructional design. 

 - 4th ed. 
 - Fort Worth   Harcourt Brace Jovanovich College Publishers,  1992. 
 - xiii, 365 p.   ill.   25 cm. 
<br/><br/>Includes  indexes. 
<br/><br/><label>ISBN: </label>9780030347573 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instructional design.
<br/><br/><label>LC Class. No.: </label>LB1028 GP 1992