Cita APA

Bureau of Railway Economics (Washington, D.C.), & Association of American Railroads. Bureau of Railway Economics. (1920). Railway revenues and expenses. The Bureau.

Citación estilo Chicago

Bureau of Railway Economics (Washington, D.C.), and Association of American Railroads. Bureau of Railway Economics. Railway Revenues and Expenses. Washington, D.C.: The Bureau, 1920.

Cita MLA

Bureau of Railway Economics (Washington, D.C.), and Association of American Railroads. Bureau of Railway Economics. Railway Revenues and Expenses. The Bureau, 1920.