TY  - BOOK
AU  - Ringwala,S.C
TI  - Principles of railway engineering: a basic text-book for engineering students 
AV  - TF146 .R33
U1  - 625.1 
PY  - 1964///
CY  - Anand, India
PB  - Charotar Book Stall
KW  - Railroad engineering
ER  -