000
00233nam a2200109Ia 4500
100
_a
SAXENA, S.C.
110
_a
ARORA, S.P.
245
_a
RAILWAY ENGINEERING
260
_b
DHANPAT RAI & SONS
_c
1995
300
_a
559
942
_2
ddc
_c
BB
999
_c
73800
_d
73800