Railroads. Freight and passenger service operating statistics of class 1 steam railways in United States, compiled from 148 reports of freight service statistics representing 158 railways and from 144 reports of passenger service statistics representing 154 railways (switching and terminal companies not included), June, 1930 and 1929 [and 6 months ended with June, 1930 and 1929; prepared in] Bureau of Statistics.

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