00509nam a2200169Ia 4500082002500000100006100025245004800086260002700134300001500161500000500176690000600181700000500187952010600192964001700298921000900315999001500324 a338.4762133bN277.ED aNational Council of Applied Economic Research, New Delhi aEconomics of diesel and electric tractionb aNew DelhibNCAERc1970 axii, 115p. a a  a 00104070aISIbISId1998-08-17l0o338.4762133 N277.EDpDP7761r2019-02-14 00:00:00w2019-02-14yBK abcdefg a4560 c4560d4560