The Transportation industries 1889-1946
385.338
B251T
Barger, Harold
 The Transportation industries 1889-1946 a study of output employment, and productivity \ Harold Barger - New York : National Bureau of Economic Research, 1951.
 xvi, 288p. - Publication of the Natinal Bureau of Economic Research; no.51 .
7049
  Subjects: Transportation.

