Saettler, L. Paul. <br/><br/>
A history of instructional technology. 

 - New York  McGraw-Hill  [1967, c1968] 
 - xv, 399 p.  illus., ports.  23 cm. 
<br/><br/>Bibliography: p. [371]-384. 
<br/><br/><label>LCCN: </label>67021599 //r902 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Philosophy.<br/>Audiovisual education.<br/>Teaching--Aids and devices.
<br/><br/><label>LC Class. No.: </label>LB885  / .S15 
<br/><br/><label>Dewey Class. No.: </label>371.3