Roberts, D. (1980). American railroads: The case for nationalization. New York: Pathfinder.
Cita Chicago (17th ed.)Roberts, Dick. American Railroads: The Case for Nationalization. New York: Pathfinder, 1980.
Cita MLA (8th ed.)Roberts, Dick. American Railroads: The Case for Nationalization. New York: Pathfinder, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.