TY - BOOK AU - Locklin,D.Philip TI - Economics of transportation, AV - HE2741 .L7 1947 PY - 1947/// CY - Chicago PB - R.D. Irwin, inc. KW - Railroads KW - Freight KW - Rates KW - United States KW - Transportation N1 - "First printing, February, 1947."; "Selected references" at end of each chapter ER -