Fierro, Rodolfo, 1880-1915 (Autor Personal)

Gámez García, Ernesto. La Bestia hermosa, 2007: t.p. (Rodolfo Fierro)

Wikipedia, 2009-02-18 (Rodolfo Fierro (b. 1880, d. October 14, 1915) was a railway worker, railway superintendent, federal soldier and lieutenant in the army of Pancho Villa during the Mexican Revolution in the Division del Norte)