Gagné, Robert M.  1916-2002. <br/><br/>
Principles of instructional design / 
Robert M. Gagné, Leslie J. Briggs, Walter W. Wager. 
 - 4th ed. 
 - Fort Worth :  Harcourt Brace Jovanovich College Publishers,  c1992. 
 - xiii, 365 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0030347572 
<br/><br/><label>LCCN: </label>91027787  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instructional systems--Design.<br/>Learning.
<br/><br/><label>LC Class. No.: </label>LB1028.38  / .G34 1992 
<br/><br/><label>Dewey Class. No.: </label>371.3 GAG