Brunstrom, C, ed. Mann, A P, ed. <br/><br/>
Aspects of educational technology 

 - London  Sir Isaac Pitman and sons limited  1972 
 - 7v.(1300 p.); 23cm. : 
<br/><br/> V.3 aspects of educational technology/edited by A P Mann and C P Brunstrom- V.5 aspects of educational technology/edited by Derek Packham, Alan Cleary and Terry Mayes- V.6 aspects of educational technology/edited by K Austwick and N D C Harris g 
<br/><br/><label>ISBN: </label>30273003003