Gagne, Robert Mills,  1916- <br/><br/>
Principles of instructional design / 
by Robert M. Gagne and Leslie J. Briggs. 
 - Rinehart and Winston, New York :  Holt,  1974. 
 - ix, 270 p. :  illus. ;  24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0030081718 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Learning.<br/>Instructional systems--Design.