TY  - BOOK
AU  - WILLIAM W HAY
TI  - AN INTRODUCTION TOTRANSPORTATION ENGINEERING
U1  - GN623.6H321I 
PY  - 1961///
CY  - LONDON
PB  - JHON WILEY & SONS
KW  - AN INTRODUCTION TOTRANSPORTATION ENGINEERING
N1  - MODERN BOOK JABALPUR
ER  -