Smith, Patricia L., <br/><br/>
Instructional design / 
Patricia L. Smith, Tillman J. Ragan. 
 - Second edition. 
 - New York :  Wiley,  c1999. 
 - xv, 399 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>047136570X (Pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instructional systems--Design.
<br/><br/><label>LC Class. No.: </label>LB1028.38  / .S64 1999