Gibson, Tony,  1919- <br/><br/>
The practice of ETV / 
Tony Gibson. 
 - London :  Hutchinson Educational,  1970. 
 - 189 p. :  ill. ;  20 cm. 
<br/><br/><label>ISBN: </label>0090991001 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Television in education.