G. Sarah, I. R. Chicago, and . Dee, Passage to Union: How the Railroads Transformed American Life, pp.137-138, 1996.

K. André and L. Américains, Éditions du Seuil, vol.1, pp.210-214, 2012.

C. Wolmar, The Great Railroad Revolution, op.cit., p. 160 ; J. STOVER, American Railroads, pp.81-83

C. Wolmar, The Great Railroad Revolution, p.178

J. Philippe and R. Daniel, Go West ! Histoire de l'Ouest américain d'hier à aujourd'hui, pp.118-119, 2004.

J. Stover and A. Railroads, , pp.142-145

G. R. Taylor and I. D. Neu, The American Railroad Network, pp.82-83, 2003.

S. Richard and M. Lines, , pp.55-56, 1900.

C. Wolmar, The Great Railroad Revolution, pp.237-246

J. Stover and A. Railroads, , pp.192-197

C. Wolmar, The Great Railroad Revolution, pp.294-295

R. Saunders and M. Lines, , pp.42-45

A. Martin and R. Triumphant, , pp.120-121

R. E. Gallamore, J. Robert, M. , and A. Railroads, Decline and Renaissance in the Twentieth Century, pp.151-157, 2014.