000			004120000a22001330004500
245			_aCollective bargaining and technological change in American transportation
100			_aLevinson, Harold M. ...[et al.]
260			_aEvanston _bThe Transportation Center at Northwestern University _c1971
300			_axv, 723p. : ill.
080			_a656.01 _bC6
650			_aTRANPORTATION
041			_aEN
942			_cBK
999			_c43350 _d43350