000 00549nam a2200157Ia 4500
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040 _aNITIL
_cNITIL
082 _221st
_a385.338
_bB251T
100 _aBarger, Harold
245 4 _aThe Transportation industries 1889-1946
_ba study of output employment, and productivity
_cHarold Barger
260 _aNew York
_bNational Bureau of Economic Research
_c1951
300 _axvi, 288p.
440 _aPublication of the Natinal Bureau of Economic Research; no.51
650 _aTransportation
942 _cBKS
999 _c33682
_d33682