Isidro Rodríguez (footballer) (English Wikipedia)

Vicente Martínez Calatrava (17 August 2009). "La Copa Príncipe de Asturias" [The Prince of Asturias Cup] (in Spanish). CIHEFE. Archived from the original on 14 April 2019. Retrieved 22 June 2022.

fameceleste.com

Ereaga, Txema (6 February 2015). "Coia, el antiguo feudo celeste" [Coia, the ancient celestial fiefdom]. www.fameceleste.com (in Spanish). Archived from the original on 13 April 2021. Retrieved 21 June 2022.
Ereaga, Txema (12 January 2015). "El primer partido del Celta" [Celta's first game]. www.fameceleste.com (in Spanish). Archived from the original on 13 April 2021. Retrieved 21 June 2022.

"El pleito del fútbol gallego" [The Galician football dispute]. El Pueblo Gallego (in Spanish). No. 548. 1 November 1925. p. 3.

Vicente Martínez Calatrava (17 August 2009). "La Copa Príncipe de Asturias" [The Prince of Asturias Cup] (in Spanish). CIHEFE. Archived from the original on 14 April 2019. Retrieved 22 June 2022.
Ereaga, Txema (6 February 2015). "Coia, el antiguo feudo celeste" [Coia, the ancient celestial fiefdom]. www.fameceleste.com (in Spanish). Archived from the original on 13 April 2021. Retrieved 21 June 2022.
Ereaga, Txema (12 January 2015). "El primer partido del Celta" [Celta's first game]. www.fameceleste.com (in Spanish). Archived from the original on 13 April 2021. Retrieved 21 June 2022.

Vicente Martínez Calatrava (17 August 2009). "La Copa Príncipe de Asturias" [The Prince of Asturias Cup] (in Spanish). CIHEFE. Archived from the original on 14 April 2019. Retrieved 22 June 2022.

"El caso Isidro. Dicen los clubs Celta y Deportivo" [The Isidro case. Celta and Deportivo talk]. El Ideal Gallego (in Spanish). No. 2.408. 26 September 1925. p. 2.
"Se resuelve el pleito gallego" [The Galician dispute is resolved]. El Ideal Gallego (in Spanish). No. 2.471. 9 December 1925. p. 8.

"Grandes y pequeños jugadores del Celta de Vigo: ISIDRO" [Big and small Celta de Vigo players: ISIDRO]. www.yojugueenelcelta.com (in Spanish). Retrieved 22 June 2022.