Whitaker, P. D. <br/><br/>
A survey of video distribution systems for educational purposes :  a report to the National Council for Educational Technology / 
The research team: P. D. Whitaker, C. Parker, J. S. Roebuck. 
 - London :  National Council for Educational Technology,  1973. 
 - 87 p. :  ill. ;  30 cm. 
<br/><br/>Bibliography :p. 86-87 
<br/><br/><label>ISBN: </label>0902204106 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Visual education--United Kingdom.