Espich, James E., <br/><br/>
Developing programmed instructional materials :  A handbook for program writers / 
By James e. espich & bill Williams. 
 - 138 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Autoría--Enseñanza programada
<br/><br/><label>LC Class. No.: </label>LB1028.6  / E85