Fry, Edward,  1925- <br/><br/>
Teaching machines and programmed instruction :  an introduction / 
Edward Fry. 
 - New York :  McGraw-Hill,  c1963. 
 - 244 p. :  illus. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed instruction.<br/>Teaching machines.
<br/><br/><label>Dewey Class. No.: </label>371.3944  / FRT 1963