Fry,E.D. <br/><br/>
Teaching machines and programmed instruction an introduction 

 - London :  Mcgraw hill book company inc,  1963 
 - 244p.;  24cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>371.3  / FRY