Bates, Tony & Gallagher, Margaret <br/><br/>
Formative evaluation of educational television programmes 

 - Council for educational technology, London  1978 
 - 63 
<br/><br/><label>ISBN: </label>0 902204-89-0 
<br/><br/><label>Dewey Class. No.: </label>371.3358 Bat/Gal