| LC control no. | no 99006507 |
|---|---|
| Geographic heading | Ciudad Porfirio Díaz (Coahuila, Mexico) |
| Variant(s) | Cd. Porfirio Díaz (Coahuila, Mexico) |
| See also | Piedras Negras (Mexico) |
| Special note | SUBJECT USAGE: This heading is not valid for use as a subject. Works about this place are entered under Piedras Negras (Mexico). |
| Found in | Pueblo libre (Ciudad Porfirio Díaz, Mexico), 25 de jun. de 1911: t.p. (Cd. Porfirio Díaz, Coah., México) Col. Lipp. gaz., 1962 (name of Piedras Negras, Coahuila, changed in 1888 to Ciudad Porfirio Díaz in honor of the dictator; with his downfall, former name restored) |
| Not found in | Sánchez Martínez, M. Mineral de Pozos, San Luis de la Paz, Guanajuato, c2007 (2008 printing) p. 21 (the former Ciudad Porfirio Díaz, today Mineral de Pozos; in state of Guanajuato) |
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