TY  - BOOK
AU  - PLANNING AND TRANSPORT RESEARCH COMPUTATION CO. LTD
ED  - PLANNING AND TRANSPORT RESEARCH COMPUTATION CO. LTD
TI  - On-line computing:  Proceedings of P.T.R.C. (Planning and Transport Research Computation Co. Ltd) seminar   
U1  - D6,9(B)p.N69, K9 
PY  - 1968///
CY  - London
PB  - Planning and Transport Research Computation Co. Ltd (PTRC)   
ER  -