Aspects of educational technology :  the proceedings of the programmed learning conference, held at Loughborough, 15-18 april, 1966 / 
edited by Derick Unwin and John Leedham 
 - 545 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enseñanza programada--Congresos
<br/><br/><label>LC Class. No.: </label>LB1028.5  / P76 1966