000			00571nam a2200145 a 4500
005			20220228110735.0
035			_aF8901000716873
084			_aUIL BUL 406 1953
245			_aeconomic investigation of solid journal bearing operation i-n freight service on two large class I railways / Roy M. Wr-ight....[et al].
260			_aUrbana, Illinois : University of Illinois, Engineering Experiment Station
300			_a110 p.
440			_aBulletin series ; no.406
690			_aTransporte ferroviario - Flete y carga - Operación - Costos
700			_aWright, Roy M., coaut.
999			_c63574 _d63574