On-line computing   Proceedings of P.T.R.C. (Planning and Transport Research Computation Co. Ltd) seminar    

 - London  Planning and Transport Research Computation Co. Ltd (PTRC)     1968 
 - 32p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>D6,9(B)p.N69, K9