Rushby, N. J. <br/><br/>
An introduction to educational computing / 
Nicholas John Rushby. 
 - London :  Croom Helm,  1979. 
 - 123 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0709922108 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer-assisted instruction.