000 00342nam a2200157Ia 4500
082 _a519.5024625
_bJ24.SA
100 _aSingh, Jagjit
245 _aStatistics aids to railway operation
_b
260 _aBombay
_bAsia
_c1965
300 _aviii, 195p.
500 _a
690 _a
700 _a
964 _a
_b
_c
_d
_e
_f
_g
921 _a15129
999 _c15129
_d15129