Computers in education:   Proceedings of the IFIP 2nd world conference  

 - Amsterdam:   North-Holland Publishing Company,   1975 
 - xviii, 876p.  
<br/><br/><label>ISBN: </label>0-444-862555-2 
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.3:37(082.2)   / L5